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CPC
COOPERATIVE PATENT CLASSIFICATION
C25B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F 13/00; single-crystal growth C30B) [2021-01]
NOTE

  • Compounds of particular interest are also classified in the relevant classes, e.g. in C01, C07, C08.
C25B 1/00
Electrolytic production of inorganic compounds or non-metals [2021-01]
WARNING

C25B 1/01
.
Products [2021-01]
WARNING

C25B 1/02
. .
Hydrogen or oxygen [2021-01]
C25B 1/04
. . .
by electrolysis of water [2021-01]
WARNING

C25B 1/042
. . . .
of steam [2021-01]
WARNING

C25B 1/044
. . . .
of mixed hydrogen and oxygen gas, e.g. Brown's gas [HHO] [2021-01]
WARNING

C25B 1/13
. .
Ozone [2021-01]
C25B 1/135
. .
Carbon [2021-01]
WARNING

C25B 1/14
. .
Alkali metal compounds [2021-01]
C25B 1/16
. . .
Hydroxides (by simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine C25B 1/34) [2021-01]
WARNING

C25B 1/18
. .
Alkaline earth metal compounds or magnesium compounds [2021-01]
C25B 1/20
. . .
Hydroxides [2021-01]
C25B 1/21
. .
Manganese oxides [2021-01]
C25B 1/22
. .
Inorganic acids [2021-01]
C25B 1/23
. .
Carbon monoxide or syngas [2021-01]
WARNING

C25B 1/24
. .
Halogens or compounds thereof [2021-01]
C25B 1/245
. . .
Fluorine; Compounds thereof [2021-01]
C25B 1/26
. . .
Chlorine; Compounds thereof (by simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine C25B 1/34) [2021-01]
WARNING

C25B 1/265
. . . .
{Chlorates} [2021-01]
C25B 1/27
. .
Ammonia [2021-01]
WARNING

C25B 1/28
. .
Per-compounds [2021-01]
C25B 1/29
. . .
Persulfates [2021-01]
C25B 1/30
. . .
Peroxides [2021-01]
C25B 1/32
. . .
Perborates [2021-01]
C25B 1/33
. .
Silicon [2021-01]
C25B 1/34
. .
Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis [2021-01]
WARNING

C25B 1/36
. . .
in mercury cathode cells [2021-01]
C25B 1/42
. . . .
Decomposition of amalgams [2021-01]
C25B 1/44
. . . . .
with the aid of catalysts [2021-01]
C25B 1/46
. . .
in diaphragm cells [2021-01]
C25B 1/50
.
Processes [2021-01]
WARNING

C25B 1/55
. .
Photoelectrolysis [2021-01]
C25B 3/00
Electrolytic production of organic compounds [2021-01]
WARNING

C25B 3/01
.
Products [2021-01]
WARNING

C25B 3/03
. .
Acyclic or carbocyclic hydrocarbons [2021-01]
C25B 3/05
. .
Heterocyclic compounds [2021-01]
C25B 3/07
. .
Oxygen containing compounds [2021-01]
C25B 3/09
. .
Nitrogen containing compounds [2021-01]
C25B 3/11
. .
Halogen containing compounds [2021-01]
C25B 3/13
. .
Organo-metallic compounds [2021-01]
C25B 3/20
.
Processes [2021-01]
WARNING

C25B 3/21
. .
Photoelectrolysis [2021-01]
WARNING

C25B 3/23
. .
Oxidation (halogenation C25B 3/27) [2021-01]
WARNING

C25B 3/25
. .
Reduction [2021-01]
WARNING

C25B 3/26
. . .
of carbon dioxide [2021-01]
WARNING

C25B 3/27
. .
Halogenation [2021-01]
WARNING

C25B 3/28
. . .
Fluorination [2021-01]
WARNING

C25B 3/29
. .
Coupling reactions [2021-01]
WARNING

C25B 3/295
. . .
{hydrodimerisation} [2021-01]
WARNING

C25B 5/00
Electrogenerative processes, i.e. processes for producing compounds in which electricity is generated simultaneously [2021-01]
C25B 7/00
Electrophoretic production of compounds or non-metals (separation or purification of peptides, e.g. of proteins, by electrophoresis C07K 1/26) [2021-01]
C25B 9/00
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features [2021-01]
WARNING

C25B 9/005
.
{Amalgam decomposition cells} [2021-01]
WARNING

C25B 9/01
.
Electrolytic cells characterised by shape or form [2021-01]
WARNING

C25B 9/015
. .
Cylindrical cells [2021-01]
C25B 9/05
.
Pressure cells [2021-01]
WARNING

C25B 9/07
.
Common duct cells [2021-01]
WARNING

C25B 9/09
.
Fused bath cells [2021-01]
WARNING

C25B 9/13
.
Single electrolytic cells with circulation of an electrolyte [2021-01]
WARNING

C25B 9/15
. .
Flow-through cells [2021-01]
C25B 9/17
.
Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof [2021-01]
WARNING

C25B 9/19
. .
with diaphragms [2021-01]
WARNING

C25B 9/21
. . .
two or more diaphragms [2021-01]
WARNING

C25B 9/23
. . .
comprising ion-exchange membranes in or on which electrode material is embedded [2021-01]
WARNING

C25B 9/30
.
Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof [2021-01]
WARNING

C25B 9/303
. .
{comprising horizontal-type liquid electrode} [2021-01]
C25B 9/305
. .
{comprising vertical-type liquid electrode} [2021-01]
C25B 9/40
.
Cells or assemblies of cells comprising electrodes made of particles; Assemblies of constructional parts thereof [2021-01]
WARNING

C25B 9/43
. .
{comprising fluidised bed electrodes} [2021-01]
WARNING

C25B 9/47
. .
{comprising static bed electrodes} [2021-01]
WARNING

C25B 9/50
.
Cells or assemblies of cells comprising photoelectrodes; Assemblies of constructional parts thereof [2021-01]
WARNING

C25B 9/60
.
Constructional parts of cells [2021-01]
WARNING

C25B 9/63
. .
Holders for electrodes; Positioning of the electrodes [2021-01]
C25B 9/65
. .
Means for supplying current; Electrode connections; Electric inter-cell connections [2021-01]
C25B 9/66
. . .
{Electric inter-cell connections including jumper switches} [2021-01]
C25B 9/67
. .
Heating or cooling means [2021-01]
WARNING

C25B 9/70
.
Assemblies comprising two or more cells [2021-01]
WARNING

C25B 9/73
. .
of the filter-press type [2021-01]
WARNING

C25B 9/75
. . .
having bipolar electrodes [2021-01]
WARNING

C25B 9/77
. . .
having diaphragms [2021-01]
WARNING

C25B 11/00
Electrodes; Manufacture thereof not otherwise provided for [2021-01]
WARNING

  • Group C25B 11/00 is incomplete pending reclassification of documents from groups C25B 1/04, C25B 9/30, and C25B 9/70.
    All groups listed in this Warning should be considered in order to perform a complete search.
C25B 11/02
.
characterised by shape or form [2021-01]
WARNING

C25B 11/03
. .
perforated or foraminous [2013-01]
C25B 11/031
. . .
Porous electrodes [2021-01]
WARNING

C25B 11/032
. . . .
Gas diffusion electrodes [2021-01]
WARNING

C25B 11/033
. .
Liquid electrodes [2021-01]
WARNING

C25B 11/034
. .
Rotary electrodes [2021-01]
WARNING

C25B 11/036
. .
Bipolar electrodes [2021-01]
C25B 11/037
. .
Electrodes made of particles [2021-01]
WARNING

C25B 11/04
.
characterised by the material [2021-01]
WARNING

C25B 11/042
. .
Electrodes formed of a single material [2021-01]
WARNING

C25B 11/043
. . .
Carbon, e.g. diamond or graphene [2021-01]
WARNING

C25B 11/044
. . . .
Impregnation of carbon [2021-01]
WARNING

C25B 11/045
. . .
Mercury or amalgam [2021-01]
C25B 11/046
. . .
Alloys [2021-01]
WARNING

C25B 11/047
. . .
Ceramics [2021-01]
WARNING

C25B 11/048
. . .
Organic compounds [2021-01]
WARNING

C25B 11/049
. . .
Photocatalysts [2021-01]
WARNING

C25B 11/051
. .
Electrodes formed of electrocatalysts on a substrate or carrier [2021-01]
WARNING

C25B 11/052
. . .
Electrodes comprising one or more electrocatalytic coatings on a substrate [2021-01]
WARNING

C25B 11/053
. . . .
characterised by multilayer electrocatalytic coatings [2021-01]
C25B 11/054
. . .
Electrodes comprising electrocatalysts supported on a carrier [2021-01]
WARNING

C25B 11/055
. . .
characterised by the substrate or carrier material [2021-01]
WARNING

C25B 11/056
. . . .
consisting of textile or non-woven fabric [2021-01]
WARNING

C25B 11/057
. . . .
consisting of a single element or compound [2021-01]
WARNING

C25B 11/059
. . . . .
Silicon [2021-01]
C25B 11/061
. . . . .
Metal or alloy [2021-01]
WARNING

C25B 11/063
. . . . . .
Valve metal, e.g. titanium [2021-01]
WARNING

C25B 11/065
. . . . .
Carbon [2021-01]
WARNING

C25B 11/067
. . . . .
Inorganic compound e.g. ITO, silica or titania [2021-01]
WARNING

C25B 11/069
. . . .
consisting of at least one single element and at least one compound; consisting of two or more compounds [2021-01]
WARNING

C25B 11/071
. . . . .
comprising metal or alloy powder and non-metallic binders [2021-01]
C25B 11/073
. . .
characterised by the electrocatalyst material [2021-01]
WARNING

C25B 11/075
. . . .
consisting of a single catalytic element or catalytic compound [2021-01]
WARNING

C25B 11/077
. . . . .
the compound being a non-noble metal oxide [2021-01]
WARNING

C25B 11/0771
. . . . . .
{of the spinel type} [2021-01]
C25B 11/0773
. . . . . .
{of the perovskite type} [2021-01]
C25B 11/0775
. . . . . .
{of the rutile type} [2021-01]
C25B 11/079
. . . . . .
Manganese dioxide; Lead dioxide [2021-01]
WARNING

C25B 11/081
. . . . .
the element being a noble metal [2021-01]
C25B 11/083
. . . . .
Diamond [2021-01]
WARNING

C25B 11/085
. . . . .
Organic compound [2021-01]
WARNING

C25B 11/087
. . . . .
Photocatalytic compound [2021-01]
WARNING

C25B 11/089
. . . . .
Alloys [2021-01]
WARNING

C25B 11/091
. . . .
consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds [2021-01]
C25B 11/093
. . . . .
at least one noble metal or noble metal oxide and at least one non-noble metal oxide [2021-01]
C25B 11/095
. . . . .
at least one of the compounds being organic [2021-01]
C25B 11/097
. . . . .
comprising two or more noble metals or noble metal alloys [2021-01]
WARNING

C25B 13/00
Diaphragms; Spacing elements [2013-01]
C25B 13/02
.
characterised by shape or form [2021-01]
C25B 13/04
.
characterised by the material [2021-01]
WARNING

C25B 13/05
. .
based on inorganic materials [2021-01]
WARNING

C25B 13/06
. . .
based on asbestos [2021-01]
C25B 13/07
. . .
based on ceramics [2021-01]
WARNING

C25B 13/08
. .
based on organic materials [2013-01]
C25B 15/00
Operating or servicing cells [2021-01]
C25B 15/02
.
Process control or regulation [2021-01]
WARNING

C25B 15/021
. .
of heating or cooling [2021-01]
WARNING

C25B 15/023
. .
Measuring, analysing or testing during electrolytic production [2021-01]
WARNING

  • Groups C25B 15/023 - C25B 15/033 are incomplete pending reclassification of documents from group C25B 15/02.
    All groups listed in this Warning should be considered in order to perform a complete search.
C25B 15/025
. . .
of electrolyte parameters [2021-01]
C25B 15/027
. . . .
Temperature [2021-01]
C25B 15/029
. . . .
Concentration [2021-01]
C25B 15/031
. . . . .
pH [2021-01]
C25B 15/033
. . . .
Conductivity [2021-01]
C25B 15/04
.
Regulation of the inter-electrode distance [2021-01]
C25B 15/06
.
Detection or inhibition of short circuits in the cell [2013-01]
C25B 15/08
.
Supplying or removing reactants or electrolytes; Regeneration of electrolytes [2021-01]
WARNING

C25B 15/081
. .
{Supplying products to non-electrochemical reactors that are combined with the electrochemical cell, e.g. Sabatier reactor} [2021-01]
WARNING

C25B 15/083
. .
{Separating products} [2021-01]
WARNING

C25B 15/085
. .
{Removing impurities} [2021-01]
WARNING

C25B 15/087
. .
{Recycling of electrolyte to electrochemical cell} [2021-01]
WARNING