Ongoing CPC projects (as of 20 February 2025) | Cooperative Patent Classification

The CPC areas currently undergoing maintenance (MP) or revision (RP) are listed in the table below together with the corresponding project number. The outcome of these projects will be summarized in a Notice of Change pre-released one month before the corresponding changes are implemented in the CPC scheme.

Project	Status	CPC	Title
RP12401	Active	A01K	Fish-hooks; Artificial baits for fishing
RP11659	Active	A01K, A61D	Animal husbandry
RP10480	Active	A41G	ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
MP11897	Active	A61B	Removal of non limiting references from scheme
RP11992	Active	A61G	TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS
RP11991	Active	A61J	CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES
RP11785	Active	A61K	Changes to A61K41
RP12262	Active	A61K	A61K48 Gene Therapy
MP12696	Active	A61K	Follow-up RP12360
MP11676	Active	A61K	Definitions A61K9 and A61K47
RP10468	Active	A61K, Y10S	Bacterial antigens
RP11946	Active	A61M	Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way
MP12708	Active	A61M, B05B, B60G, B66B, B67C, E05B, F16D, G03B, G05B, G06F, G07F, G08B, H03H, H03J, H04B, H04N	[IPC2025.01](M837) Review the use of terminology "master/slave"
MP12503	Active	A61M, B23D, B60C	Various - correction of CPC only notes in scheme lacking curly brackets
RP12149	Active	A63B, A63C	SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
RP11802	Active	B01J	Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
MP10332	Active	B01J	C-SETS
MP11959	Active	B01L	Removal of additional NLR
RP11745	Active	B05B	Spraying apparatus
RP11955	Active	B08B	Cleaning
RP12170	Active	B21C	MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
RP11669	Active	B32B, D01D, D04H	Deleting outdated Warnings and not used groups in D04H
MP12700	Active	B60K	[IPC2025.01](F170) Instrumentation or dashboards for vehicles
RP11836	Active	C04B	Fillers for mortars, concrete or artificial stone
MP12313	Active	C07D	Heterocyclic Compounds Guidance Headings
RP12293	Active	C07F	Housekeeping in C07F7 and C07F9
MP11852	Active	C07G	C07G scheme and definition changes
RP11530	Active	C07K	Peptides: Peptides having more than 20 amino acids, and Immunoglobulins; Ion Channels (C07K14)
RP12019	Active	C08C	C08C19 Scheme and definitions
RP12030	Active	C08G	Polysiloxanes C08G77
RP11804	Active	C10M, C10N	To clarify what classifies in C10M & C10N
RP11657	Active	C12N	C12N9 IPC alignment
MP12018	Active	C12N	Mutation or genetic engineering
MP12179	Active	C12Q	MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS
MP12083	Active	C21B, C21C	NLR in C21B and C21C
MP12140	Active	C22C	ALLOYS
RP12250	Active	C23C, E02B, F16H, F16J, G01R, H03M	Removal of outdated warnings
RP12311	Active	F01N	GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
MP12247	Active	F02F	CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
MP12294	Active	F02N	Starting of combustion engines; Starting aids for such engines, not otherwise provided for
RP10485	Active	F16H	GEARING
RP11830	Active	F16M	FRAMES, CASINGS, OR BEDS OF ENGINES
RP12316	Active	F21S	Portable and non-portable lighting devices
RP12325	Active	F21V	Features of Lighting Devices
RP12426	Active	F23B	METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
RP12295	Active	F23D	Burners
RP12411	Active	F24D, F24H	FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
RP12292	Active	F25B	Indexing scheme associated with refrigeration machines
MP12318	Active	F25J	LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
RP12222	Active	F41G	Sighting devices
MP12034	Active	G01C	Measuring, follow-up project
MP12705	Active	G01J, H10B, H10K, H10N	[IPC2025.01](M633) Proposals for improving the IPC - Electricity, Physics
RP12082	Active	G01N	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
RP11803	Active	G01N	G01N 30 Chromatography
RP11980	Active	G06Q	Administration; Management (business methods CPC ONLY
RP11981	Active	G06Q	Commerce, e.g. shopping or e-commerce (CPC only)
RP11982	Active	G06Q	Finance; Insurance; Tax strategies; Processing of corporate or income taxes (CPC only)
RP12174	Active	G21B	FUSION REACTORS
MP12252	Active	H01C	Resistors
RP12035	Active	H01F	MAGNETS
MP12098	Active	H01L	Arrangements for connecting or disconnecting semiconductor or solid-state bodies
MP12386	Active	H03G	Follow-up of IPC2024 implementation project to correct NLR & other issues in CPC
MP12387	Active	H03L	Follow-up of IPC2024 implementation project to correct NLR & other issues in CPC
RP12306	Active	H04L	Network arrangements, protocols or services for addressing or naming
MP12721	Active	H04L	[IPC2026.01](C532) Title of group H04L12/14
RP12303	Active	H04M	Warnings at H04M
RP11832	Active	H04W	Synchronisation arrangements; Affiliation to network, e.g. registration Terminating affiliation with the network
MP12697	Active	H10	[IPC2025.01](C510) H10 Title & Glossary; Overall H01L to H10 migration