The CPC areas currently undergoing maintenance (MP) or revision (RP) are listed in the table below together with the corresponding project number. Once finalized, the outcome of these projects will be summarized in a Notice of Change to be published one to two months before the corresponding changes are implemented in the CPC Scheme.
| Project | Status | CPC | Title |
| RP11513 | Active | A01C | Planting and Sowing |
| RP10470 | Active | A01G | Soilless cultivation, hydroponics |
| RP11659 | Active | A01K | Animal husbandry |
| MP11904 | Active | A21C | [IPC2023.01] Removal of NLR in A21C |
| RP11908 | Active | A23L 13/00 | [IPC2023.01] Tenderised or flavoured meat pieces |
| RP11508 | Active | A23V | Food compositions |
| MP11921 | Active | A41 | [IPC2023.01] Removal of NLR A41 in subclasses under including corresponding Definitions |
| RP10481 | Active | A61B10/++ | Other methods or instruments for diagnosis |
| RP11524 | Active | A61H | PHYSICAL THERAPY APPARATUS... |
| MP11839 | Active | A61J1/00 | [IPC2023.01] Review of the relationship between main group and subgroup A61J1/14 |
| RP11515 | Active | A61K | PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES |
| RP11785 | Active | A61K 41/00 | Changes to A61K41 |
| RP11675 | Active | A61K31 | Propose to add a new group containing Cannabinoids and its derivatives |
| RP10468 | Active | A61K39/02-A61K39/118 | Bacterial antigens |
| RP10429 | Active | A61K39/80 | Cellular immunotherapy /CART |
| RP11519 | Active | B01D | Deletions of B01D23, 29/0002-29/009, 2033/07, and 35/08 |
| RP10476 | Active | B01D15/00+ | Selective adsorption, e.g. chromatography |
| RP11802 | Active | B01J20/00-B01J20/3491, B01J39/00-B01J49/90 | B01J |
| MP11909 | Active | B01L | [IPC2023.01] Removal of NLR - B01L |
| MP11910 | Active | B03C | [IPC2023.01] Removal of NLR - B03C |
| RP11745 | Active | B05B | Spraying apparatus |
| RP11901 | Active | B05B11/00 | [IPC2023.01] Single-unit hand-held apparatus comprising a reservoir and a dispensing nozzle attached thereto |
| RP10457 | Active | B23D45,49,53,55,59,61,63,65;B27B17/14;B27G | Revision related to Saws |
| RP11671 | Active | B32B17/10005, B32B2307/00+ | Definitions needed to clarify whether resin interlayers are considered as layers in a glass laminate |
| MP11924 | Active | B41J | [IPC2023.01] Removal of NLR B41J including corresponding Definitions |
| RP11529 | Active | B41J2/00 | TYPEWRITERS; SELECTIVE PRINTING MECHANISMS |
| RP10471 | Active | B60N2/00 | Seats specially adapted for vehicles |
| RP11518 | Active | B60W 2300; 2552; 2556 | CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT |
| RP10482 | Active | B61L | Train control systems |
| RP11903 | Active | B64C21/00 | [IPC2023.01] Influencing air flow over aircraft surfaces by affecting boundary layer flow |
| RP11777 | Active | B64G1/00 | Cosmonautics; Vehicles or equipment therefor |
| RP11941 | Active | B64U | [IPC2023.01] Unmanned aerial vehicles [UAV] |
| RP11765 | Active | C02F9/00 | [IPC2023.01] (Multistage treatment of water, waste water or sewage) |
| RP11755 | Active | C04B 18/16 | [IPC2023.01] Use or treatment of agglomerated or waste materials … |
| RP11531 | Active | C07K16 | Immunoglobulins from Acinetobacter and Cytomegalovirus C07K16 |
| MP11911 | Active | C09C | [IPC2023.01] Removal of NLR - C09C |
| RP11790 | Active | C11D11/00 | Detergents |
| RP11657 | Active | C12N9/22; C12N9/0004-C12N9/0097 | C12N9 IPC alignment |
| RP11672 | Active | C21D, C22F | Definitions are needed for "warm rolling" vs. "hot rolling" vs. "cold rolling" |
| RP11754 | Active | C22C 1/00 | [IPC2023.01] Making non-ferrous alloys |
| MP11912 | Active | C23D | [IPC2023.01] Removal of NLR - C23D |
| MP11913 | Active | D01C | [IPC2023.01] Removal of NLR - D01C |
| RP11669 | Active | D04H | Deleting outdated Warnings and not used groups in D04H |
| RP10483 | Active | E04B1/343 | Structures characterised by movable, separable, or collapsible parts, e.g. for transport |
| MP11920 | Active | E04H | [IPC2023.01] Removal of non-limiting references in subclass E04H |
| RP11523 | Active | E05F | DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION... |
| RP10484 | Active | E21C | Miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam |
| RP10450 | Active | F02B | INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL |
| RP11800 | Active | F03D | Wind motors |
| RP10485 | Active | F16H | GEARING |
| RP11807 | Active | F21K 5/00-F21K 99/00 | Functional Features or details of Light Sources |
| MP11906 | Active | G01B | [IPC2023.01] Review of titles, notes and Definitions in subclass G01B |
| RP10479 | Active | G01N33/00-G01N33/46,G01N33/483-G01N2033/4977,G01 | Clean up of CPC-only groups in G01N33 and G01N37 |
| RP10462 | Active | G02B6/44 | Optical fibre cables, accessories and installation thereof |
| RP10475 | Active | G03F7/70 | Microphotolithography |
| MP11773 | Active | G04F | [IPC2023.01] (M245) Relocation of NLR |
| MP11775 | Active | G06C | [IPC2023.01] (M253) Relocation of NLR |
| RP11770 | Active | G06F 18/00 | [IPC2023.01] (F142) Pattern recognition |
| RP11517 | Active | G06F 21/00 | Security arrangements for protecting computers |
| RP10466 | Active | G06F9/00 | Arrangements for program control, e.g. control units |
| RP11914 | Active | G06N | [IPC2023.01] [F141] Artificial intelligence [AI] |
| MP11769 | Active | G06Q | [IPC2023.01] Review of the title of subclass G06Q and the First Place Priority Rule applied under this subclass |
| RP11925 | Active | G06Q 10/00, G06Q 30/00, G06Q 40/00 | [IPC2023.01] Data processing systems or methods, specially adapted for administration and management; & commerce; & Finance; Insurance; Tax strategies; Processing of corporate or income taxes |
| MP11918 | Active | G10H | [IPC2023.01] [M260] Removal of NLR |
| MP11919 | Active | G10K | [IPC2023.01] [M261] Removal of NLR |
| RP11945 | Active | H01L | [IPC2023.01] Transfers of H01L 27/00/low groups to H10B, H10K and H10N groups (IPC projects C511-C513) |
| RP11944 | Active | H01L | [IPC2023.01] Transfers of H01L 25/00/low groups to H10B, H10K and H10N groups (IPC projects C511-C513) |
| RP11760 | Active | H01L (H10) | [IPC2023.01] Overall H01L to H10 migration |
| RP11766 | Active | H01L (H10B) | [IPC2023.01] (C511) Electronic memory devices |
| RP11801 | Active | H01L (H10K) | [IPC2023.01] [C512] Organic electric solid-state devices |
| RP11761 | Active | H01L (H10N) | [IPC2023.01] Electric solid-state devices not otherwise provided for |
| RP10474 | Active | H01R | Spring connections using leaf springs |
| RP11758 | Active | H01S 3/00 | [IPC2023.01] Lasers |
| MP11916 | Active | H02B 1/00+ | [IPC2023.01] [M254] Removal of NLR in Subclass H02B |
| MP11917 | Active | H02G | [IPC2023.01] [M255] Removal of NLR in subclass H02G |
| MP11774 | Active | H03J | [IPC2023.01] (M250) Relocation of NLR |
| RP11520 | Active | H04B 17/00+ | Monitoring; Testing |
| RP11516 | Active | H04J 14/00 | Optical multiplex systems |
| RP11915 | Active | H04L 1/16 | [IPC2023.01] [F159] Return channel carries supervisory signals |
| RP11509 | Active | H04L25 | Transmission digital info |
| RP11902 | Active | H04N | [IPC2023.01] Electronic cameras; Circuitry of solid-state image sensors |
| RP11757 | Active | H04W 28/00 | [IPC2023.01] Network traffic management … |
| RP11771 | Active | H04W 72/00 | [IPC2023.01] (F151) Local resource management |
| MP11942 | Active | H04W28/00 | [IPC2023.01] Network traffic management |
| RP11668 | Active | H04W36/00-36/385 | Amendments to H04W schemes and definitions, creation and modification of subgroups, definitions required. Titles need improving. (HP0129). |
| RP10453 | Active | H05B47 | Circuit arrangements for operating light sources in general |
| MP11776 | Active | H05G | [IPC2023.01] (M256) Relocation of NLR |
| MP11922 | Active | various | [IPC2023.01] [M821] Review of the use of abbreviations in the IPC |
| MP11907 | Active | various | [IPC2023.01](M631) Correction of obvious errors |
| MP11840 | Active | various | [IPC2023.01] Proposals for improving the IPC - Mechanics |
| MP11772 | Active | various | [IPC2023.01] (M633) Proposals for improving the IPC - Electricity, Physics |
| RP11818 | Active | Y10S 244/90-Y10S 244/905 | Deletion of Y10S 244/90-Y10S 244/905 |