CPC Main Group
F04C 29/00 Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Filing statistics
CPC F04C 29/00 belongs to the parent subclass F04C, which recorded 51,252 patent applications worldwide between 2013 and 2023. Annual filings declined from 6,720 in 2013 to 3,771 in 2023 (-44%). The most active applicants in class F04 are LG ELECTRONICS (3,855 applications), ROBERT BOSCH (3,549 applications) and GREE ELECTRIC APPLIANCES (2,273 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- F04C 29/02 Lubrication (of machines or engines in general F01M); Lubricant separation (separation in general B01D)
- F04C 29/04 Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00)
- F04C 29/06 Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N)
- F04C 29/12 Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Top Applicants
Top 10 applicants by patent filingsfor class F04, 2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 3,855
- ROBERT BOSCH DE 3,549
- GREE ELECTRIC APPLIANCES 2,273
- GE (GENERAL ELECTRIC COMPANY) US 2,126
- MITSUBISHI ELECTRIC CORPORATION JP 1,881
- UNITED TECHNOLOGIES CORPORATION (UTC) US 1,866
- SAFRAN AIRCRAFT ENGINES FR 1,499
- MITSUBISHI HEAVY INDUSTRIES JP 1,258
- TOYOTA INDUSTRIES CORPORATION JP 1,247
- ATLAS COPCO AIRPOWER BE 1,168