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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
NOTE
-
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

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