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 Class   204CHEMISTRY: ELECTRICAL AND WAVE ENERGY
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             PROCESSES AND PRODUCTS
 Class 205 is an integral part of this Class (Class 204), as shown by the position of this box, and follows the schedule hierarchy of this Class, retaining all pertinent definitions and Class lines of this class.
 
  155           . (1 indent ) Electrical, or wave energy in magnetic field
  156           .. (2 indent ) With discharge
  157.15           . (1 indent ) Processes of treating materials by wave energy
  157.2           .. (2 indent ) Isotope separation or enrichment
  157.21           ... (3 indent ) Inorganic product produced
  157.22           .... (4 indent ) Using laser
  157.3           .. (2 indent ) Removing a component from normally gaseous mixture
  157.4           .. (2 indent ) Process of preparing desired inorganic material
  157.41           ... (3 indent ) Using laser
  157.42           ... (3 indent ) Using sonic or ultrasonic energy
  157.43           ... (3 indent ) Using microwave energy
  157.44           ... (3 indent ) Using ionizing radiation
  157.45           ... (3 indent ) Boron, phosphorous or silicon containing product produced
  157.46           ... (3 indent ) Nitrogen containing product produced
  157.47           ... (3 indent ) Carbon containing product produced
  157.48           ... (3 indent ) Halogen containing product produced
  157.49           ... (3 indent ) Sulfur containing product produced
  157.5           ... (3 indent ) Oxygen containing product produced
  157.51           .... (4 indent ) Metal oxide or hydrate thereof
  157.52           ... (3 indent ) Hydrogen containing product produced
  157.6           .. (2 indent ) Process or preparing desired organic product containing at least one atom other than carbon and hydrogen
  157.61           ... (3 indent ) Using laser
  157.62           ... (3 indent ) Using sonic or ultrasonic energy
  157.63           ... (3 indent ) Using ionizing radiation
  157.64           .... (4 indent ) Nitrogen, sulfur, phosphorous or silicon containing product produced
  157.65           .... (4 indent ) Carbocyclic ring containing product produced
  157.67           ... (3 indent ) Vitamin product produced
  157.68           ... (3 indent ) Carbohydrate or protein product produced
  157.69           ... (3 indent ) Heterocyclic product produced
  157.7           .... (4 indent ) Hetero sulfur containing
  157.71           .... (4 indent ) Hetero nitrogen containing
  157.72           .... (5 indent ) Hetero nitrogen ring contains at least two hetero atoms
  157.73           ... (3 indent ) Phosphorous product produced
  157.74           ... (3 indent ) Silicon product produced
  157.75           ... (3 indent ) Heavy metal product produced
  157.76           ... (3 indent ) Sulfur product produced
  157.77           .... (4 indent ) Nitrogen containing
  157.78           .... (4 indent ) Oxygen containing
  157.79           .... (5 indent ) Halogen containing
  157.8           .... (4 indent ) Halogen containing
  157.81           ... (3 indent ) Nitrogen product produced
  157.82           .... (4 indent ) Oxygen containing
  157.83           .... (5 indent ) Nitroso or oxime containing
  157.84           ..... (6 indent ) Halogen containing
  157.85           .... (4 indent ) Carbon triple bonded to nitrogen containing
  157.86           .... (4 indent ) Halogen containing
  157.87           ... (3 indent ) Carboxylic acid or derivative product produced
  157.88           .... (4 indent ) Oxygen other than as part of a carboxylic acid or derivative moiety
  157.89           .... (4 indent ) Atom other than carbon, hydrogen or oxygen
  157.9           ... (3 indent ) Alcohol product produced
  157.91           .... (4 indent ) Fused or bridged ring containing
  157.92           ... (3 indent ) Ether product produced
  157.93           ... (3 indent ) Aldehyde or ketone product produced
  157.94           ... (3 indent ) Halogen product produced
  157.95           .... (4 indent ) Carbon and halogen only in product
  157.96           .... (5 indent ) Carbocyclic ring containing
  157.97           ..... (6 indent ) Aryl ring containing
  157.98           .... (4 indent ) Unsaturated product
  157.99           .... (5 indent ) Unsaturation in aryl ring
  158.1           .... (4 indent ) Carbocyclic ring containing
  158.11           .... (4 indent ) Two or more diverse halogen atoms containing
  158.12           .... (4 indent ) Four or more carbon atoms containing
  158.14           .. (2 indent ) At least one carbocyclic ring and only carbon and hydrogen atoms in product produced
  158.2           .. (2 indent ) Processes of purifying materials
  158.21           ... (3 indent ) Organic material purified
 Note: See subclasses 900-914 for art collections pertaining to subclasses 157.15-157.21.
 
  164           . (1 indent ) Electrostatic field or electrical discharge
  165           .. (2 indent ) Organic
  166           ... (3 indent ) Vitamins
  167           ... (3 indent ) Fats, fatty oils, ester type waxes, or higher fatty acids
  168           ... (3 indent ) Hydrocarbons
  169           .... (4 indent ) Halogenated or oxidized
  170           .... (4 indent ) Gaseous
  171           .... (5 indent ) Acetylene
  172           .... (4 indent ) Cracking hydrocarbon oils
  173           .. (2 indent ) Carbon
  174           .. (2 indent ) Sulfur-oxygen compounds
  175           .. (2 indent ) Hydrogen peroxide
  176           .. (2 indent ) Ozone
  177           .. (2 indent ) Nitrogen compounds
  178           ... (3 indent ) Arc or spark discharge
  179           .... (4 indent ) Nitrogen oxides
  450           . (1 indent ) Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere
  451           .. (2 indent ) Capillary electrophoresis
  452           ... (3 indent ) With detailed detection
  453           ... (3 indent ) With injection
  454           ... (3 indent ) With adjustment or alteration of electro-osmotic bulk flow
  455           ... (3 indent ) Using gel-filled capillary
  456           .. (2 indent ) Gel electrophoresis
  457           ... (3 indent ) With programmed, cylic, or time responsive control
  458           .... (4 indent ) Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)
  459           ... (3 indent ) Isoelectric focusing (i.e., using pH variation)
  461           ... (3 indent ) With analysis or detailed detection
  462           ... (3 indent ) With posttreatment of gel to purify or recover a desired component
  463           .... (4 indent ) Destaining
  464           .... (4 indent ) Blotting
  465           ... (3 indent ) Preparation in unitary apparatus (e.g., preparative, etc.)
  466           ... (3 indent ) Using slab gel
  467           .... (4 indent ) Vertical or inclined
  468           ... (3 indent ) Electrolyte composition
  469           ... (3 indent ) Gel composition (other than simple agarose or polyacrylamide)
  470           .... (4 indent ) Including manufacture or preparation (e.g., molding, gelation, etc.)
  471           .. (2 indent ) Coating or forming of object
  472           ... (3 indent ) With control responsive to sensed condition
  473           .... (4 indent ) Temperature sensed
  474           .... (4 indent ) Current sensed
  475           ... (3 indent ) Rubber or vulcanizable gum used to coat or form
  476           .... (4 indent ) Sheet, web, wire, or filament of indeterminant length formed or coated
  477           ... (3 indent ) Alternating current
  478           ... (3 indent ) With irradiation or illumination (e.g., for curing, etc.)
  479           ... (3 indent ) Coating interior of object
  480           ... (3 indent ) With regeneration or replenishment of coating bath (e.g., ultrafiltration, ion exchange, measurement followed by addition of concentrated reagent, etc.)
  481           .... (4 indent ) Using ion exchange material
  482           .... (4 indent ) Using filter or membrane
  483           ... (3 indent ) Forming of object
  484           ... (3 indent ) Plural coating operations
  485           .... (4 indent ) Using mask
  486           .... (4 indent ) Including nonelectrophoretic coating
  487           .... (5 indent ) With heat treatment of a coated layer (e.g., curing, sintering, etc.)
  488           ..... (6 indent ) Organic (e.g., curing thermoset resin, etc.)
  489           ... (3 indent ) Using bath having designated chemical composition (DCC)
  490           .... (4 indent ) Resultant coating is solely inorganic
  491           .... (5 indent ) With heat treatment of coating
  492           .... (4 indent ) Anodic processes only
  493           .... (5 indent ) With heat treatment of coating
  494           ..... (6 indent ) And washing, rinsing, or drying of coating
  495           .... (5 indent ) With pretreatment of substrate or bath
  496           .... (5 indent ) Bath contains shading or coloring agent (e.g., pigment, etc.)
  497           .... (5 indent ) Bath contains surface active agent (e.g., soap or detergent, wetting or emulsifying agent, etc.)
  498           .... (5 indent ) Bath contains carboxyl group
  499           .... (4 indent ) Cathodic processes only
  500           .... (5 indent ) With heat treatment of coating
  501           ..... (6 indent ) Bath contains epoxy or epoxide
  502           .... (5 indent ) Bath contains epoxy or epoxide
  503           ..... (6 indent ) And shading or coloring agent
  504           ..... (6 indent ) And separate crosslinking or curing agent
  505           ...... (7 indent ) Isocyanate
  506           .... (5 indent ) Bath contains separate crosslinking or curing agent
  507           .... (4 indent ) With posttreatment of coating (e.g., heat treatment, washing, drying, etc.)
  508           .... (4 indent ) Bath contains shading or coloring agent, metal oxide, free metal, or free carbon
  509           ... (3 indent ) With heat treatment of coating
  510           ... (3 indent ) With pretreatment of substrate (e.g., cleaning, wetting, etc.)
  511           ... (3 indent ) Using liquid jet
  512           ... (3 indent ) Continuous movement of substrate through bath
  513           .. (2 indent ) Hydrocarbon oil separated or purified
  514           ... (3 indent ) Aqueous system
  515           .. (2 indent ) Inorganic siliceous or calcareous material prepared, separated, or treated (e.g., clay, earth, concrete, asbestos, glass, etc.)
  516           ... (3 indent ) Barrier separation (e.g., using membrane, filter paper, etc.)
  517           .... (4 indent ) Ion selective
  518           .. (2 indent ) Barrier separation (e.g., using membrane, filter paper, etc.)
  519           ... (3 indent ) With control responsive to sensed condition
  520           ... (3 indent ) Ion selective
  521           .... (4 indent ) Combined with manufacture or pretreatment of barrier
  522           .... (4 indent ) Using both anion and cation selective membranes
  523           .... (5 indent ) Alternating anion and cation selective membranes
  524           ..... (6 indent ) And using ion exchange material (e.g., suspended particles, etc.)
  525           ..... (6 indent ) With prevention of scale buildup or fouling of membrane
  526           ..... (6 indent ) Gas or vapor treated
  527           ..... (6 indent ) Biological material prepared, recovered, or treated (e.g., urine, etc.)
  528           ..... (6 indent ) Regeneration of liquid electrolyte
  529           ..... (6 indent ) Metal or metal salt recovered or removed
  530           ..... (6 indent ) Organic material prepared, recovered, or treated
  531           ..... (6 indent ) Acid prepared, recovered, or treated
  532           .... (5 indent ) And using nonion selective membrane
  533           .... (5 indent ) And using ion exchange material (e.g., suspended particles, etc.)
  534           .... (5 indent ) And using bipolar membrane
  535           .... (4 indent ) And using nonion selective membrane
  536           .... (4 indent ) And using ion exchange material (e.g., suspended particles, etc.)
  537           .... (4 indent ) Using bipolar membrane
  538           .... (5 indent ) Water splitting
  539           .... (4 indent ) Using anion selective membrane
  540           .... (4 indent ) Biological material prepared, recovered, or treated (e.g., urine, etc.)
  541           .... (4 indent ) Organic material prepared, recovered, or treated
  542           ... (3 indent ) Combined with diverse-type separation (e.g., electro-osmotic barrier separation combined with centrifugal separation, etc.)
  543           ... (3 indent ) Biological material prepared, recovered, or treated (e.g., urine, etc.)
  544           ... (3 indent ) Organic material prepared, recovered, or treated
  545           .. (2 indent ) With use of nonelectrical field or force to separate (e.g., magnetic, centrifugal, etc.)
  546           .. (2 indent ) Absorbent strip electrophoresis (e.g., using cellulose acetate or paper strip, etc.)
  547           .. (2 indent ) Dielectrophoresis (i.e., using nonuniform electric field)
  548           .. (2 indent ) Isoelectric focusing (i.e., using pH variation)
  549           .. (2 indent ) Isotachophoresis (i.e., displacement electrophoresis) or measurement of ion or particle mobility
  550           .. (2 indent ) Ionophoresis
  551           .. (2 indent ) Solid sorption or desorption
  553           .. (2 indent ) Bulk separation of solids and liquids (e.g., dewatering solids, clarifying water, etc.)
  554           . (1 indent ) Electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation)
  555           .. (2 indent ) With control responsive to sensed condition
  556           .. (2 indent ) With measuring, testing, or sensing
  557           .. (2 indent ) Using magnetic field
  558           .. (2 indent ) With simultaneous use of liquid-liquid extraction solvent
  559           .. (2 indent ) Predominantly hydrocarbon
  560           ... (3 indent ) Removing solids
  561           .... (4 indent ) With addition of agent to facilitate removal
  562           .... (4 indent ) Using cohesive filter or solid packing
  563           ... (3 indent ) Resolving emulsion or dispersion
  564           .... (4 indent ) Using interrupted or pulsed direct current field
  565           .... (4 indent ) Using modified alternating current (other than standard 50 Hz or 60 Hz sine wave) field
  567           .... (4 indent ) Using modifying agent
  568           .... (5 indent ) Gas or vapor
  569           .... (5 indent ) Dielectric liquid
  570           .... (5 indent ) Water
  571           .. (2 indent ) Removing solids
  572           ... (3 indent ) Using cohesive filter or solid packing
  573           .. (2 indent ) Resolving emulsion or dispersion
  192.1           . (1 indent ) Coating, forming or etching by sputtering
  192.11           .. (2 indent ) Ion beam sputter deposition
  192.12           .. (2 indent ) Glow discharge sputter deposition (e.g., cathode sputtering, etc.)
  192.13           ... (3 indent ) Measuring or testing (e.g., of operating parameters, property of article, etc.)
  192.14           ... (3 indent ) Coating inorganic material onto polymeric material
  192.15           ... (3 indent ) Specified deposition material or use
  192.16           .... (4 indent ) Wear or abrasion resistant
  192.17           .... (4 indent ) Electrical contact material
  192.18           .... (4 indent ) Piezoelectric
  192.2           .... (4 indent ) Ferromagnetic
  192.21           .... (4 indent ) Resistor
  192.22           .... (4 indent ) Insulator or dielectric
  192.23           .... (5 indent ) Silicon containing
  192.24           .... (4 indent ) Superconductor
  192.25           .... (4 indent ) Semiconductor
  192.26           .... (4 indent ) Optical or photoactive
  192.27           .... (5 indent ) Reflective
  192.28           .... (5 indent ) Absorptive
  192.29           .... (5 indent ) Transparent conductor
  192.3           .... (4 indent ) With sputter etching
  192.32           .. (2 indent ) Sputter etching
  192.33           ... (3 indent ) Measuring or testing (e.g., of operating parameters, end point determination, etc.)
  192.34           ... (3 indent ) Ion beam etching (e.g., ion milling, etc.)
  192.35           ... (3 indent ) Etching specified material
  192.36           .... (4 indent ) Organic
  192.37           .... (4 indent ) Silicon containing
  192.38           . (1 indent ) Vacuum arc discharge coating
  193           APPARATUS
  194           . (1 indent ) Electrolytic
  400           .. (2 indent ) Analysis and testing
  401           ... (3 indent ) Fault testing of sensor or component
  402           ... (3 indent ) Regeneration or activation
  403.01           ... (3 indent ) Biological material (e.g., microbe, enzyme, antigen, etc.) analyzed, tested, or included in apparatus
  403.02           .... (4 indent ) Disposable apparatus or apparatus having removable section (e.g., removable cartridge, etc.)
  403.03           .... (5 indent ) Plural measuring sections or zones
  403.04           .... (5 indent ) Enzyme included in apparatus
  403.05           ..... (6 indent ) With semipermeable membrane
  403.06           .... (4 indent ) With semipermeable membrane
  403.07           .... (5 indent ) For blocking passage of macromolecules (molecular weight greater than or equal to 8,000)
  403.08           ..... (6 indent ) Lipid included in apparatus
  403.09           ..... (6 indent ) Enzyme included in apparatus
  403.1           .... (5 indent ) Enzyme included in apparatus
  403.11           ..... (6 indent ) Glucose oxidase
  403.12           ...... (7 indent ) With diverse enzyme or catalyst (e.g., bienzyme or coenzyme system, glucose oxidase with Pt catalyst, etc.)
  403.13           .... (5 indent ) And microelectrode (i.e., at least one electrode dimension is less than 500 microns)
  403.14           .... (4 indent ) Enzyme included in apparatus
  403.15           .... (4 indent ) Electrode containing free carbon
  404           ... (3 indent ) Corrosion
  405           ... (3 indent ) Titration
  406           ... (3 indent ) With significant electrical circuitry or nominal computer device
  407           ... (3 indent ) With significant display or analytical device
  408           ... (3 indent ) With means for temperature or pressure compensation
  409           ... (3 indent ) With means providing specified-flow condition or flow-path
  410           .... (4 indent ) Solid electrolyte means
  411           .... (4 indent ) Three or more electrodes
  412           ... (3 indent ) Three or more electrodes
  413           ... (3 indent ) Liquid electrode, e.g., Hg, Na, etc.
  414           ... (3 indent ) Gel electrolyte
  415           ... (3 indent ) Selectively permeable membrane
  416           ... (3 indent ) Ion-sensitive electrode
  417           .... (4 indent ) Liquid ion-exchanger
  418           .... (4 indent ) Organic membrane
  419           .... (4 indent ) Inorganic membrane
  420           .... (5 indent ) Glass ion-selective membrane
  421           ... (3 indent ) Solid electrolyte
  422           .... (4 indent ) Liquid sample sensor
  423           .... (5 indent ) With fugitive protective element
  424           .... (4 indent ) Gas sample sensor
  425           .... (5 indent ) With impressed current means
  426           .... (5 indent ) Planar electrode surface
  427           .... (5 indent ) With gas reference material
  428           ..... (6 indent ) With protective element
  429           ...... (7 indent ) Protective element is a layer
  430           ... (3 indent ) Moisture absorbing electrolyte
  431           ... (3 indent ) Gas sensing electrode
  432           .... (4 indent ) With gas diffusion electrode
  433           ... (3 indent ) Measuring carbon or pH
  434           ... (3 indent ) Involving plating, coating or stripping
  435           ... (3 indent ) Standard reference electrode
  196.01           .. (2 indent ) Object protection
  196.02           ... (3 indent ) With control means responsive to sensed condition
  196.03           .... (4 indent ) And programmed, cyclic, or time responsive control means
  196.04           .... (4 indent ) Internal battery
  196.05           ... (3 indent ) With programmed, cyclic, or time responsive control means
  196.06           ... (3 indent ) With measuring, testing, or sensing means
  196.07           .... (4 indent ) Internal battery
  196.08           ... (3 indent ) With gas or vapor removing or treating means
  196.09           ... (3 indent ) Plural cells used or protected
  196.1           ... (3 indent ) Internal battery
  196.11           .... (4 indent ) Resistor or impedance in series between anode and object
  196.12           .... (4 indent ) With fluid filter
  196.13           .... (4 indent ) With bypass means
  196.14           .... (4 indent ) Anode moving relative to object
  196.15           .... (4 indent ) With fluid inlet or outlet means used or protected
  196.16           .... (5 indent ) Dielectric coating, casing, or section
  196.17           .... (4 indent ) Rigid anode with rigid support
  196.18           .... (5 indent ) More than half of anode is or has coating, covering, or shield
  196.19           ..... (6 indent ) Dielectric coating, covering, or shield
  196.2           .... (4 indent ) Flexible cable, chain, or wire anode or support
  196.21           .... (4 indent ) Earth grounded object or protection means
  196.22           .... (4 indent ) Copper and zinc electrically coupled or alloyed into one or more electrodes
  196.23           .... (4 indent ) Anode contains aluminum
  196.24           .... (5 indent ) And magnesium
  196.25           .... (5 indent ) And zinc
  196.26           ... (3 indent ) Resistor or impedance in series between power supply and object
  196.27           ... (3 indent ) Alternative energy supply (e.g., solar panel, thermoelectric or piezoelectric power supply, etc.)
  196.28           ... (3 indent ) Rotating electrode
  196.29           ... (3 indent ) Magnetic mounting means
  196.3           ... (3 indent ) Rigid anode with rigid support
  196.31           .... (4 indent ) Threaded coupling for rigid anode or rigid support
  196.32           .... (5 indent ) Dielectric thread
  196.33           ... (3 indent ) Flexible cable, chain, or wire anode or support
  196.34           .... (4 indent ) Plural anode sections on single cable, chain, or wire
  196.35           .... (5 indent ) Helically wound
  196.36           ... (3 indent ) Earth grounded object or protection means
  196.37           ... (3 indent ) Vessel protected (e.g., steam boiler, etc.)
  196.38           ... (3 indent ) Anode contains precious metal or free carbon
             .. (2 indent ) With movable electrode means
  198           ... (3 indent ) Work conveyer
  199           .... (4 indent ) Rotary
  200           .... (5 indent ) With base treatment
  201           .... (5 indent ) Loose article
  202           .... (4 indent ) Endless
  203           .... (5 indent ) With base treatment
  204           ..... (6 indent ) With current control
  205           .... (5 indent ) With current control
  206           ... (3 indent ) Continuous strip or filament electrode
  207           .... (4 indent ) With base treatment
  208           .... (5 indent ) Stripping
  209           .... (5 indent ) Mechanical working
  210           .... (5 indent ) Heat treatment means
  211           .... (4 indent ) With current control
  212           ... (3 indent ) Rotary
  213           .... (4 indent ) Barrels and rotary receptacles
  214           .... (5 indent ) Swinging or tilting receptacles
  215           .... (4 indent ) With base treatment
  216           .... (5 indent ) Stripping
  217           .... (5 indent ) Mechanical working
  218           .... (4 indent ) With current control
  219           ... (3 indent ) Liquid electrode
  220           .... (4 indent ) With electrode recirculation means
  221           .... (4 indent ) With oscillator, reciprocator or agitator
  222           ... (3 indent ) Electrode oscillator, reciprocator or agitator
  223           .... (4 indent ) With current control
  224R           ... (3 indent ) Localized area applicators
  224M           .... (4 indent ) Electrochemical machining
  225           ... (3 indent ) Electrode feeding or withdrawal means
  226           .... (4 indent ) With base treatment
  227           .. (2 indent ) Cells with base treatment means
  228.1           .. (2 indent ) With current, voltage, or power control means responsive to sensed condition
  228.2           ... (3 indent ) Fluid level sensing means
  228.3           ... (3 indent ) Fluid flow sensing means
  228.4           ... (3 indent ) Fluid pressure sensing means
  228.5           .... (4 indent ) Gaseous fluid
  228.6           ... (3 indent ) Electrolyte property sensing means (e.g., temperature, concentration, pH, conductivity, etc.)
  228.7           ... (3 indent ) Workpiece property sensing means (e.g., mass, coating thickness, etc.)
  228.8           ... (3 indent ) Workpiece presence, position, or movement sensing means
  228.9           ... (3 indent ) Having auxiliary electrode
  229.1           .... (4 indent ) Reference electrode as or with auxiliary electrode
  229.2           ... (3 indent ) And programmed, cyclic, or time responsive control means
  229.3           .... (4 indent ) For controlling waveform supplied to working electrode
  229.4           .. (2 indent ) With programmed, cyclic, or time responsive current, voltage, or power control means
  229.5           ... (3 indent ) For controlling waveform supplied to working electrode
  229.6           ... (3 indent ) For simultaneously reversing polarity of working and counter electrodes
  229.7           ... (3 indent ) Having specified circuit details
  229.8           .. (2 indent ) With means for measuring, testing, or sensing current, voltage, or power
  229.9           ... (3 indent ) Having auxiliary electrode
  230.1           .... (4 indent ) Reference electrode as or with auxiliary electrode
  230.2           .. (2 indent ) With current, voltage, or power control means
  230.3           ... (3 indent ) Mechanical
  230.4           ... (3 indent ) For inhibiting short circuits
  230.5           ... (3 indent ) Switch or connector
  230.6           ... (3 indent ) For controlling waveform
  230.7           ... (3 indent ) Having auxiliary electrode
  230.8           ... (3 indent ) Having specified circuit details
  232           .. (2 indent ) Cells with electrolyte treatment means
  233           ... (3 indent ) Leacher, dissolver or extractor
  234           .... (4 indent ) Recirculation
  235           .... (5 indent ) With filter
  236           .... (5 indent ) With heater or cooler
  237           ... (3 indent ) Recirculation
  238           .... (4 indent ) With filter
  239           .... (4 indent ) With heater or cooler
  240           ... (3 indent ) With filter
  241           ... (3 indent ) With heater or cooler
  242           .. (2 indent ) Cells
  243.1           ... (3 indent ) Fused bath
  244           .... (4 indent ) Plural cells
  245           .... (4 indent ) With feeding and/or withdrawal means
  246           .... (5 indent ) Gas feeding
  247           .... (5 indent ) Gas withdrawal
  247.1           .... (4 indent ) With magnetic field effect compensating means
  247.2           .... (4 indent ) With means for cleaning electrode element
  247.3           .... (4 indent ) Refractory hard material (RHM) containing electrode
  247.4           .... (4 indent ) With cell lining or coating
  247.5           .... (5 indent ) Thermal effect compensating means
  248           ... (3 indent ) Internal battery
  249           .... (4 indent ) Filter or loose electrode type
  250           ... (3 indent ) Liquid electrode
  251           .... (4 indent ) Diaphragm type
  252           ... (3 indent ) Diaphragm type
  253           .... (4 indent ) Plural cells
  254           .... (5 indent ) Bipolar electrode
  255           ..... (6 indent ) With feeding and/or withdrawal means
  256           ...... (7 indent ) Gas
  257           .... (5 indent ) With feeding and/or withdrawal means
  258           ..... (6 indent ) Gas
  259           .... (4 indent ) Basket-type electrode
  260           .... (4 indent ) Concentrically arranged electrodes
  261           .... (4 indent ) With agitator
  262           .... (4 indent ) With heater or cooler
  263           .... (4 indent ) With feeding and/or withdrawal means
  264           .... (5 indent ) And filter
  265           .... (5 indent ) Gas feeding
  266           .... (5 indent ) Gas withdrawal
  267           ... (3 indent ) Plural cells
  268           .... (4 indent ) Bipolar electrode
  269           .... (4 indent ) With feeding and/or withdrawal means
  270           .... (5 indent ) Gas
  271           ... (3 indent ) Portable
  272           ... (3 indent ) Concentrically arranged electrodes
  273           ... (3 indent ) With agitator
  274           ... (3 indent ) With heater or cooler
  275.1           ... (3 indent ) With feeding and/or withdrawal means
 [See the Search Notes for FOR Collections associated with this subclass or its indents (if there are indents).]
 
  276           .... (4 indent ) And filter
  277           .... (4 indent ) Gas feeding
  278           .... (4 indent ) Gas withdrawal
  278.5           .... (4 indent ) Parallel plate type electrodes
  279           .. (2 indent ) Elements
  280           ... (3 indent ) Electrodes
  281           .... (4 indent ) Electroforming molds or strips plates
  282           .... (4 indent ) With diaphragm
  283           .... (5 indent ) Perforated or foraminous electrode
  284           .... (4 indent ) Perforated or foraminous
  285           .... (5 indent ) Work holder
  286.1           .... (4 indent ) With electrode supporting means
 [See the Search Notes for FOR Collections associated with this subclass or its indents (if there are indents).]
 
  287           .... (5 indent ) Work container
  288           .... (5 indent ) Electrodes with lateral extensions
  288.1           .... (5 indent ) And dielectric gasket or spacer
  288.2           .... (5 indent ) And additional electrical conductor of diverse material
  288.3           .... (5 indent ) Including resilient means (e.g., spring, etc.)
  288.4           .... (5 indent ) Including threaded connector
  288.5           ..... (6 indent ) Having wedge or tapered tightening means
  288.6           .... (5 indent ) Hook or loop
  289           .... (4 indent ) With lateral extensions
  290.01           .... (4 indent ) Laminated or coated (i.e., composite having two or more layers)
 [See the Search Notes for FOR Collections associated with this subclass or its indents (if there are indents).]
 
  290.02           .... (5 indent ) Actinide series element (i.e., Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, or Lr) or compound containing
  290.03           .... (5 indent ) Having three or more layers
  290.04           ..... (6 indent ) Rare earth metal (i.e., Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu) or compound containing
  290.05           ..... (6 indent ) Organic compound containing
  290.06           ...... (7 indent ) And noble metal (i.e., Ru, Rh, Pd, Os, Ir, Pt, Ag, or Au) or compound containing
  290.07           ...... (7 indent ) And free carbon containing
  290.08           ..... (6 indent ) Noble metal (i.e., Ru, Rh, Pd, Os, Ir, Pt, Ag, or Au) or compound containing
  290.09           ...... (7 indent ) Plural metal oxides containing
  290.1           .... (5 indent ) Rare earth metal (i.e., Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu) or compound containing
  290.11           .... (5 indent ) Organic compound containing
  290.12           .... (5 indent ) Refractory metal (i.e., Ti, V, Cr, Zr, Nb or Cb, Mo, Hf, Ta, or W) or compound containing
  290.13           ..... (6 indent ) Surface layer contains electrolytically exposed refractory metal or compound
  290.14           .... (5 indent ) Noble metal (i.e., Ru, Rh, Pd, Os, Ir, Pt, Ag, or Au) or compound containing
  290.15           .... (5 indent ) Free carbon containing
  291           .... (4 indent ) Composition
  292           .... (5 indent ) Metallic
  293           ..... (6 indent ) Alloys
  294           .... (5 indent ) Carbon containing
  295           ... (3 indent ) Diaphragms
  296           .... (4 indent ) Organic
  297.01           ... (3 indent ) Electrode support or work holder
 [See the Search Notes for FOR Collections associated with this subclass or its indents )if there are indents).]
 
  297.02           .... (4 indent ) Magnetic support
  297.03           .... (4 indent ) Vacuum support
  297.04           .... (4 indent ) Float or buoyant support
  297.05           .... (4 indent ) Mask for workpiece
  297.06           .... (4 indent ) Workpiece rack
  297.07           .... (5 indent ) Adjustable
  297.08           ..... (6 indent ) Mechanized
  297.09           ..... (6 indent ) Including resilient means (e.g., spring, etc.)
  297.1           .... (5 indent ) Including resilient means (e.g., spring, etc.)
  297.11           .... (5 indent ) Porous enclosure
  297.12           .... (5 indent ) Grid or grating
  297.13           .... (5 indent ) Including threaded connector
  297.14           .... (4 indent ) Including resilient means (e.g., spring, etc.)
  297.15           .... (4 indent ) Including threaded connector
  297.16           .... (4 indent ) Hook or loop
  298.01           . (1 indent ) Coating, forming or etching by sputtering
  298.02           .. (2 indent ) Coating
  298.03           ... (3 indent ) Measuring, analyzing or testing
  298.04           ... (3 indent ) Ion beam sputter deposition
  298.05           ... (3 indent ) Ion plating
  298.06           ... (3 indent ) Triode, tetrode, auxiliary electrode or biased workpiece
  298.07           ... (3 indent ) Specified gas feed or withdrawal
  298.08           ... (3 indent ) Specified power supply or matching network
  298.09           ... (3 indent ) Specified cooling or heating
  298.11           ... (3 indent ) Specified mask, shield or shutter
  298.12           ... (3 indent ) Specified target particulars
  298.13           .... (4 indent ) Target composition
  298.14           ... (3 indent ) Specified anode particulars
  298.15           ... (3 indent ) Specified work holder
  298.16           ... (3 indent ) Magnetically enhanced
  298.17           .... (4 indent ) Flux passes through target surface
  298.18           .... (5 indent ) Focusing target (e.g., conical target, plural inclined targets, etc.)
  298.19           .... (5 indent ) Planar magnetron
  298.2           ..... (6 indent ) Moving magnetic field or target
  298.21           .... (5 indent ) Cylindrical or curved magnetron target
  298.22           ..... (6 indent ) Moving magnetic field or target
  298.23           ... (3 indent ) Moving workpiece or target
  298.24           .... (4 indent ) Indeterminate length moving workpiece
  298.25           .... (4 indent ) Multi-chamber (e.g., including air lock, load/unload chamber, etc.)
  298.26           .... (4 indent ) Plural diverse treatment stations, zones, or coating material source within single chamber
  298.27           .... (4 indent ) Plural modes of movement (e.g., planetary, epicyclic, etc.)
  298.28           .... (4 indent ) Rotational movement
  298.29           .... (4 indent ) Oscillatory movement
  298.31           .. (2 indent ) Etching
  298.32           ... (3 indent ) Measuring, analyzing or testing
  298.33           ... (3 indent ) Specified gas feed or withdrawal
  298.34           ... (3 indent ) Auxiliary electrode, bias means or specified power supply
  298.35           ... (3 indent ) Multi-chamber, load/unload means or moving workpiece
  298.36           ... (3 indent ) Beam or directed flux etching (e.g., ion beam, etc.)
  298.37           ... (3 indent ) Magnetically enhanced
  298.38           ... (3 indent ) Microwave excitation
  298.39           ... (3 indent ) Plural parallel plates (e.g., desmearing reactor, etc.)
  298.41           . (1 indent ) Vacuum arc discharge coating
  600           . (1 indent ) Electrophoretic or electro-osmotic apparatus
  601           .. (2 indent ) Capillary electrophoresis type
  602           ... (3 indent ) With control means responsive to sensed condition
  603           ... (3 indent ) With detailed detection system (e.g., including a light source and a camera, etc.)
  604           ... (3 indent ) With injector
  605           ... (3 indent ) Gel filled
  606           .. (2 indent ) Gel electrophoresis type
  607           ... (3 indent ) With control means responsive to sensed condition
  608           ... (3 indent ) With programmed, cyclic, or time responsive control means
  609           .... (4 indent ) Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)
  610           ... (3 indent ) Isoelectric focusing (i.e., uses pH variation)
  612           ... (3 indent ) With detailed detection system (e.g., including a light source and a camera, etc.)
  613           ... (3 indent ) With means for posttreatment of gel to purify or recover a desired component
  614           .... (4 indent ) Blotter (e.g., membrane, etc.)
  615           ... (3 indent ) Unitary preparation apparatus (e.g., preparative means, etc.)
  616           ... (3 indent ) Slab gel
  617           .... (4 indent ) Curved
  618           .... (4 indent ) Vertical or inclined
  619           .... (5 indent ) With gel shaping or molding means (e.g., comb, ribbed insert, gel injectors, etc.)
  620           .... (4 indent ) With gel shaping or molding means (e.g., comb, ribbed insert, gel injectors, etc.)
  621           .... (4 indent ) With liquid heat exchange means to cool gel slab during electrophoresis
  622           .. (2 indent ) Coating or forming means
  623           ... (3 indent ) With moving or movable electrode
  624           .... (4 indent ) And means for posttreatment of coating (e.g., drying, heating, curing, etc.)
  625           .... (4 indent ) Coating interior of object or article (e.g., water main, automobile body, etc.)
  626           ... (3 indent ) With means for regeneration or replenishment of coating bath or electrolyte
  627           .. (2 indent ) Barrier separator (e.g., electrodialyzer, etc.)
  628           ... (3 indent ) With control means responsive to sensed condition
  629           ... (3 indent ) With moving or movable electrode
  630           ... (3 indent ) Ion selective
  631           .... (4 indent ) With bipolar membrane
  632           .... (4 indent ) And ion exchange material (e.g., suspended ion exchange resin particles, etc.)
  633           .... (4 indent ) Both anion and cation selective membranes
  634           .... (5 indent ) Alternating anion and cation selective membranes
  635           ..... (6 indent ) Tortuous path-type frame or membrane spacer
  636           ..... (6 indent ) With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.)
  637           .... (4 indent ) And nonion selective membrane
  638           .... (4 indent ) With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.)
  639           ... (3 indent ) With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.)
  640           ... (3 indent ) Cylindrical barrier (e.g., filter, membrane, etc.)
  641           .. (2 indent ) Absorbent strip (e.g., cellulose acetate, paper strip, etc.) type
  642           ... (3 indent ) Movable strip
  643           .. (2 indent ) Dielectrophoretic (i.e., uses nonuniform electric field)
  644           .. (2 indent ) Isoelectric focusing (i.e., uses pH variation)
  645           .. (2 indent ) Isotachophoretic (i.e., displacement electrophoretic) or means to measure ion or particle mobility
  647           .. (2 indent ) Particle bed separator (e.g., inert particles, ion exchange beads, etc.)
  648           .. (2 indent ) Bulk separator for solids and liquids (e.g., to dewater solids, clarify water, etc.)
  649           ... (3 indent ) With moving or movable electrode
  650           .. (2 indent ) With moving or movable electrode
  660           . (1 indent ) Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation)
  661           .. (2 indent ) With control means responsive to sensed condition
  662           ... (3 indent ) Liquid level sensing means
  663           .. (2 indent ) With programmed, cyclic, or time responsive control means
  664           .. (2 indent ) With magnetic separating means
  665           .. (2 indent ) With filter (e.g., electrostatic filter, etc.)
  666           .. (2 indent ) Plural separate treatment chambers or zones
  667           .. (2 indent ) Probe type
  668           .. (2 indent ) With moving or movable electrode
  669           ... (3 indent ) Rotating or rotatable
  670           .. (2 indent ) Concentric electrodes
  671           ... (3 indent ) Cylindrical or annular
  672           .. (2 indent ) Parallel plate-type electrodes
  673           ... (3 indent ) Vertical flat plates
  674           .. (2 indent ) Porous, perforated, or grid electrode
 
 CROSS-REFERENCE ART COLLECTIONS
 
  900           EFFECTING A CHANGE IN ISOMERIZATION BY WAVE ENERGY
  901           EFFECTING A COLOR CHANGE BY WAVE ENERGY
  902           PRODUCTION OF DESIRED COMPOUND BY WAVE ENERGY IN PRESENCE OF A CHEMICALLY DESIGNATED NONREACTANT CHEMICAL TREATING AGENT (EXCLUDING WATER, CHLOROFORM, CARBON TETRACHLORIDE, METHYLENE CHLORIDE OR BENZENE)
  903           . (1 indent ) Inorganic chemical treating agent
  904           .. (2 indent ) Metal treating agent
  905           ... (3 indent ) Heavy metal agent
  907           . (1 indent ) Silicon or boron treating agent
  908           . (1 indent ) Phosphorus treating agent
  909           . (1 indent ) Heavy metal treating agent
  910           . (1 indent ) Sulfur treating agent
  911           . (1 indent ) Nitrogen treating agent
  912           . (1 indent ) Oxygen treating agent
  913           .. (2 indent ) Peroxide agent
  914           . (1 indent ) Only carbon, hydrogen or halogen atom in treating agent
 
 FOREIGN ART COLLECTIONS
 
  FOR000           CLASS-RELATED FOREIGN DOCUMENTS
 Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
 
  FOR920           ELECTROLYTIC OBJECT PROTECTION APPARATUS (204/196)
  FOR921           . (1 indent ) Internal battery (204/197)
  FOR922           ELECTROLYTIC CELLS WITH CURRENT CONTROL MEANS (204/228)
  FOR923           . (1 indent ) With fluid pressure, flow, or level intercontrol (204/229)
  FOR924           .. (2 indent ) Gaseous fluid (204/230)
  FOR925           . (1 indent ) Auxiliary electrode (204/231)
  FOR926           ELECTROLYTIC FUSED BATH CELLS (204/243 R)
  FOR927           . (1 indent ) Bath current distribution, magnetic field control (204/243 M)
  FOR930           ELECTROLYTIC CELLS WITH FEEDING AND/OR WITHDRAWAL MEANS (204/275)
  FOR931           ELECTROLYTIC ELECTRODE ELEMENTS WITH SUPPORTING MEANS (204/286)
  FOR932           LAMINATED OR COATED ELECTROLYTIC ELECTRODE ELEMENTS (204/290 R)
  FOR933           . (1 indent ) Dielectric film-forming metal base, insoluble conductive coating (204/290 F)
  FOR934           ELECTROLYTIC ELECTRODE SUPPORTS AND WORK HOLDERS (204/297 R)
  FOR935           . (1 indent ) Workpiece held by magnetism or suction (204/297 M)
  FOR936           . (1 indent ) Workpiece rack (204/297 W)
             APPARATUS (204/193)
             . (1 indent ) Electrolytic (204/194)
             .. (2 indent ) Analysis and testing (204/400)
  FOR937           ... (3 indent ) Biological, e.g., microbe, enzyme, antigen, etc. (204/403)
 
 DIGESTS
 
   DIG3           AUXILIARY INTERNALLY GENERATED ELECTRICAL ENERGY
   DIG4           ELECTROLYSIS CELL COMBINED WITH FUEL CELL
   DIG5           MAGNETIC PLUS ELECTROLYTIC
   DIG6           UNUSUAL NON-204 USES OF ELECTROLYSIS
   DIG7           CURRENT DISTRIBUTION WITHIN THE BATH
   DIG8           AC PLUS DC
   DIG9           WAVE FORMS
   DIG12           ELECTROCHEMICAL MACHINING
   DIG13           PURIFICATION AND TREATMENT OF ELECTROPLATING BATHS AND PLATING WASTES


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