CPC Subgroup Additional Only
F02B 2720/22 Four stroke engines
Full Title
Engines with liquid fuel > Four stroke engines
5 direct subcodes
Child Classifications
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- F02B 2720/221 with measures for removing exhaust gases from the cylinder
- F02B 2720/223 with measures for charging, increasing the power
- F02B 2720/225 with measures for compressing the cylinder charge
- F02B 2720/226 with measures for improving combustion
- F02B 2720/228 with measures for increasing the part of the heat transferred to power, compound engines
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