CPC Subgroup
F02B 25/04 Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
Full Title
Engines characterised by using fresh charge for scavenging cylinders > using unidirectional scavenging > Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
1 direct subcode
Child Classifications
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- F02B 25/06 the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof
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