| Patents > Guidance, Tools, and Manuals > Classification > Class Schedule |
|
|
|
| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
|
| You are viewing a USPC Schedule. |
|
![[Search a list of Patent Appplications for class 204]](../as.gif) Class 204 | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
| Click here for a printable version of this file | |
| 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. | ||
![[List of Patents for class 204 subclass 155]](../ps.gif) | 155 |  Electrical, or wave energy in magnetic field |
| | 157.15 | Processes of treating materials by wave energy |
| | 157.2 |  Isotope separation or enrichment |
| | 157.3 | Removing a component from normally gaseous mixture |
| | 157.4 | Process of preparing desired inorganic material |
| | 157.41 |  Using laser |
| | 157.42 | Using sonic or ultrasonic energy |
| | 157.43 | Using microwave energy |
| | 157.44 | Using ionizing radiation |
| | 157.45 | Boron, phosphorous or silicon containing product produced |
| | 157.46 | Nitrogen containing product produced |
| | 157.47 | Carbon containing product produced |
| | 157.48 | Halogen containing product produced |
| | 157.49 | Sulfur containing product produced |
| | 157.5 | Oxygen containing product produced |
| | 157.52 | Hydrogen containing product produced |
| | 157.6 | Process or preparing desired organic product containing at least one atom other than carbon and hydrogen |
| | 157.61 | Using laser |
| | 157.62 | Using sonic or ultrasonic energy |
| | 157.63 | Using ionizing radiation |
| | 157.64 |  Nitrogen, sulfur, phosphorous or silicon containing product produced |
| | 157.65 | Carbocyclic ring containing product produced |
| | 157.67 | Vitamin product produced |
| | 157.68 | Carbohydrate or protein product produced |
| | 157.69 | Heterocyclic product produced |
| | 157.73 | Phosphorous product produced |
| | 157.74 | Silicon product produced |
| | 157.75 | Heavy metal product produced |
| | 157.76 | Sulfur product produced |
| | 157.81 | Nitrogen product produced |
| | 157.82 | Oxygen containing |
| | 157.85 | Carbon triple bonded to nitrogen containing |
| | 157.86 | Halogen containing |
| | 157.87 | Carboxylic acid or derivative product produced |
| | 157.88 | Oxygen other than as part of a carboxylic acid or derivative moiety |
| | 157.89 | Atom other than carbon, hydrogen or oxygen |
| | 157.9 | Alcohol product produced |
| | 157.92 | Ether product produced |
| | 157.93 | Aldehyde or ketone product produced |
| | 157.94 | Halogen product produced |
| | 158.14 | At least one carbocyclic ring and only carbon and hydrogen atoms in product produced |
| | 158.2 | Processes of purifying materials |
| | 158.21 | Organic material purified |
| Note: See subclasses 900-914 for art collections pertaining to subclasses 157.15-157.21. | ||
| | 164 | Electrostatic field or electrical discharge |
| | 165 | Organic |
| | 173 | Carbon |
| | 174 | Sulfur-oxygen compounds |
| | 175 | Hydrogen peroxide |
| | 176 | Ozone |
| | 177 | Nitrogen compounds |
| | 450 | Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere |
| | 451 | Capillary electrophoresis |
| | 452 | With detailed detection |
| | 453 | With injection |
| | 454 | With adjustment or alteration of electro-osmotic bulk flow |
| | 455 | Using gel-filled capillary |
| | 456 | Gel electrophoresis |
| | 457 | With programmed, cylic, or time responsive control |
| | 458 | 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 | Isoelectric focusing (i.e., using pH variation) |
| | 461 | With analysis or detailed detection |
| | 462 | With posttreatment of gel to purify or recover a desired component |
| | 465 | Preparation in unitary apparatus (e.g., preparative, etc.) |
| | 466 | Using slab gel |
| | 468 | Electrolyte composition |
| | 469 | Gel composition (other than simple agarose or polyacrylamide) |
| | 471 | Coating or forming of object |
