CPC Main Group
F01C 20/00 Control of, monitoring of, or safety arrangements for, machines or engines
Filing statistics
CPC F01C 20/00 belongs to the parent subclass F01C, which recorded 11,139 patent applications worldwide between 2013 and 2023. Annual filings declined from 1,330 in 2013 to 549 in 2023 (-59%), peaking at 1,372 applications in 2016. The most active applicants in class F01 are GE (GENERAL ELECTRIC COMPANY) (9,989 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (8,110 applications) and SAFRAN AIRCRAFT ENGINES (6,248 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- F01C 20/02 specially adapted for several machines or engines connected in series or in parallel
- F01C 20/04 specially adapted for reversible machines or engines
- F01C 20/06 specially adapted for stopping, starting, idling or no-load operation
- F01C 20/08 characterised by varying the rotational speed
- F01C 20/10 characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F01C 20/18 characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F01C20/10)
- F01C 20/24 characterised by using valves for controlling pressure or flow rate, e.g. discharge valves (F01C20/10 takes precedence)
- F01C 20/28 Safety arrangements; Monitoring
Top Applicants
Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063