CPC Main Group
F02D 15/00 Varying compression ratio
Filing statistics
CPC F02D 15/00 belongs to the parent subclass F02D, which recorded 88,768 patent applications worldwide between 2013 and 2023. Annual filings declined from 9,724 in 2013 to 4,036 in 2023 (-58%), peaking at 10,814 applications in 2016. The most active applicants in class F02 are ROBERT BOSCH (8,801 applications), FORD GLOBAL TECHNOLOGIES (8,171 applications) and GE (GENERAL ELECTRIC COMPANY) (6,957 applications).
Source: EPO PATSTAT, worldwide filings
2 direct subcodes
Child Classifications
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- F02D 15/02 by alteration or displacement of piston stroke
- F02D 15/04 by alteration of volume of compression space without changing piston stroke
Top Applicants
Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 8,801
- FORD GLOBAL TECHNOLOGIES US 8,171
- GE (GENERAL ELECTRIC COMPANY) US 6,957
- HYUNDAI MOTOR COMPANY KR 5,390
- UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
- TOYOTA MOTOR CORPORATION JP 5,214
- TOYOTA MOTOR CORPORATION 4,149
- DENSO CORPORATION JP 3,400
- KIA MOTORS CORPORATION KR 3,388
- SAFRAN AIRCRAFT ENGINES FR 3,332