CPC Main Group
F01B 15/00 Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00
Filing statistics
CPC F01B 15/00 belongs to the parent subclass F01B, which recorded 6,059 patent applications worldwide between 2013 and 2023. Annual filings declined from 706 in 2013 to 260 in 2023 (-63%), peaking at 768 applications in 2014. 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
5 direct subcodes
Child Classifications
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- F01B 15/02 with reciprocating cylinders (with one piston within another F01B7/20)
- F01B 15/04 with oscillating cylinder
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