Cooperative Patent Classification


Version: 2017.08
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) [2016-05]
NOTES

  • In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.
  • Compounds of particular interest are also classified in the relevant classes, e.g. C01, C07.
WARNING

  • The following IPC groups are not used in the CPC system. Subject matter covered by these groups is classified in the following CPC groups:
    C25B11/06 covered by B01J, C25B 11/0442
    C25B11/08 covered by B01J, C25B 11/0442
    C25B11/10 covered by C25B 11/0442
C25B 1/00
Electrolytic production of inorganic compounds or non-metals [2013-01]
C25B 1/003
.
{by photo-electrolysis with or without external current source} [2013-01]
C25B 1/006
.
{of silicon} [2013-01]
C25B 1/02
.
of hydrogen or oxygen [2013-01]
C25B 1/04
. .
by electrolysis of water [2013-01]
C25B 1/06
. . .
in cells with flat or platelike electrodes [2013-01]
C25B 1/08
. . . .
of the filter-press type [2013-01]
C25B 1/10
. . .
in diaphragm cells [2013-01]
C25B 1/12
. . .
in pressure cells [2013-01]
C25B 1/13
.
of ozone [2013-01]
C25B 1/14
.
of alkali metal compounds [2013-01]
C25B 1/16
. .
Hydroxides [2013-01]
C25B 1/18
.
of alkaline earth metal compounds or magnesium compounds [2013-01]
C25B 1/20
. .
Hydroxides [2013-01]
C25B 1/21
.
of manganese oxides [2013-01]
C25B 1/22
.
of inorganic acids [2013-01]
C25B 1/24
.
of halogens or compounds thereof [2013-01]
C25B 1/245
. .
{Fluorine; Compounds thereof} [2017-02]
C25B 1/26
. .
Chlorine; Compounds thereof [2013-01]
C25B 1/265
. . .
{Chlorates} [2013-01]
C25B 1/28
.
of per-compounds [2013-01]
C25B 1/285
. .
{Persulfates} [2013-01]
C25B 1/30
. .
Peroxides [2013-01]
C25B 1/32
. .
Perborates [2013-01]
C25B 1/34
.
Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts [2013-01]
C25B 1/36
. .
in mercury cathode cells [2013-01]
C25B 1/38
. . .
with vertical mercury cathode [2013-01]
C25B 1/40
. . .
with horizontal mercury cathode [2013-01]
C25B 1/42
. . .
Decomposition of amalgams [2013-01]
C25B 1/44
. . . .
with the aid of catalysts [2013-01]
C25B 1/46
. .
in diaphragm cells [2013-01]
C25B 3/00
Electrolytic production of organic compounds [2013-01]
C25B 3/02
.
by oxidation [2013-01]
C25B 3/04
.
by reduction [2013-01]
C25B 3/06
.
by halogenation [2013-01]
C25B 3/08
. .
by fluorination [2013-01]
C25B 3/10
.
by coupling reactions, e.g. dimerisation [2013-01]
C25B 3/105
. .
{hydrodimerisation} [2013-01]
C25B 3/12
.
of organo-metallic compounds [2013-01]
C25B 5/00
Electrogenerative processes, i.e. processes for producing compounds in which simultaneously electricity is generated [2013-01]
C25B 7/00
Electrophorectic production of compounds or non-metals (separation or purification of peptides, e.g. of proteins, by electrophoresis C07K 1/26) [2013-01]
C25B 9/00
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies [2013-01]
C25B 9/005
.
{Amalgam decomposition cells} [2013-01]
C25B 9/02
.
Holders for electrodes [2013-01]
C25B 9/04
.
Devices for current supply (electrical connections in general H01R); Electrode connections; Electric inter-cell connections [2013-01]
C25B 9/045
. .
{Electric inter-cell connections including jumper switches} [2013-01]
C25B 9/06
.
Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof [2013-01]
C25B 9/063
. .
{including bipolar electrodes} [2013-01]
C25B 9/066
. . .
{and diaphragms} [2013-01]
C25B 9/08
. .
with diaphragms [2017-08]
C25B 9/10
. . .
including an ion-exchange membrane in or on which electrode material is embedded [2013-01]
C25B 9/12
.
Cells or assemblies of cells comprising at least one movable electrode, e.g. rotary electrodes; Assemblies of constructional parts thereof [2013-01]
C25B 9/125
. .
{Rotary electrodes} [2013-01]
C25B 9/14
. .
Liquid electrodes, e.g. mercury electrodes [2013-01]
C25B 9/142
. . .
{of the horizontal type} [2013-01]
C25B 9/144
. . . .
{Grouping of such cells into batteries} [2013-01]
C25B 9/146
. . .
{of the vertical type} [2013-01]
C25B 9/148
. . . .
{Grouping of such cells into batteries} [2013-01]
C25B 9/16
.
Cells or assemblies of cells comprising at least one electrode made of particles; Assemblies of constructional parts thereof [2013-01]
C25B 9/162
. .
{comprising fluidised bed electrodes} [2013-01]
C25B 9/164
. . .
{Grouping of such cells into batteries} [2013-01]
C25B 9/166
. .
{comprising static bed electrodes} [2013-01]
C25B 9/168
. . .
{Grouping of such cells into batteries} [2013-01]
C25B 9/18
.
Assemblies comprising a plurality of cells ({C25B 9/005 takes precedence }; assemblies of cells with movable electrodes C25B 9/12; assemblies of cells with electrodes made of particles C25B 9/16) [2013-01]
C25B 9/20
. .
of the filter-press type [2013-01]
C25B 9/203
. . .
{with bipolar electrodes} [2013-01]
C25B 9/206
. . . .
{with diaphragms} [2013-01]
C25B 11/00
Electrodes; Manufacture thereof not otherwise provided for [2013-01]
C25B 11/02
.
characterised by shape or form [2013-01]
C25B 11/03
. .
perforated or foraminous [2013-01]
C25B 11/035
. . .
{Porous electrodes} [2015-10]
C25B 11/04
.
characterised by the material [2013-01]
C25B 11/0405
. .
{of electrodes having a substrate and a coating} [2013-01]
C25B 11/041
. .
{characterised by the material of the substrate} [2013-01]
C25B 11/0415
. . .
{consisting of one single element or compound} [2013-01]
C25B 11/0421
. . . .
{Silicon} [2013-01]
C25B 11/0426
. . .
{consisting of plurality elements or compounds} [2013-01]
C25B 11/0431
. . . .
{Metal alloys} [2013-01]
C25B 11/0436
. . . .
{comprising metal powder and a non-metallic binder} [2013-01]
C25B 11/0442
. .
{characterised by the material of the coating} [2013-01]
C25B 11/0447
. . .
{Coatings consisting of a single component} [2013-01]
C25B 11/0452
. . . .
{Non-noble metal oxides} [2013-01]
C25B 11/0457
. . . . .
{of the spinel type} [2013-01]
C25B 11/0463
. . . . .
{of the perouskite type} [2013-01]
C25B 11/0468
. . . . .
{of the rutile type} [2013-01]
C25B 11/0473
. . . .
{Noble metals} [2013-01]
C25B 11/0478
. . .
{Coatings consisting of two or more components} [2013-01]
C25B 11/0484
. . . .
{comprising at least a noble metal or noble metal oxide and a non-noble metal oxide} [2013-01]
C25B 11/0489
. . . .
{at least one of the components being an organic compound} [2013-01]
C25B 11/0494
. . . .
{comprising two or more noble metals or noble metal alloys} [2013-01]
C25B 11/12
. .
Electrodes based on carbon (carbon masses in general C04B 35/52 ){(C25B 11/0405 takes precedence)} [2013-01]
C25B 11/14
. . .
Impregnation of carbon electrodes {(C25B 11/0405 takes precedence)} [2013-01]
C25B 11/16
. .
Electrodes based on manganese dioxide or lead dioxide {(C25B 11/0405 takes precedence)} [2013-01]
C25B 11/18
. .
Mercury or amalgam electrodes {(C25B 11/0405 takes precedence)} [2013-01]
C25B 13/00
Diaphragms; Spacing elements [2013-01]
C25B 13/02
.
characterised by form or shape [2013-01]
C25B 13/04
.
characterised by the material [2013-01]
C25B 13/06
. .
based on asbestos [2013-01]
C25B 13/08
. .
based on organic materials [2013-01]
C25B 15/00
Operating or servicing of cells [2013-01]
C25B 15/02
.
Process control or regulation (controlling or regulating in general G05) [2013-01]
C25B 15/04
.
Regulation of the inter-electrode distance (electro-machining B23P) [2013-01]
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 [2013-01]