CPC Subgroup
F02D 21/08 the other gas being the exhaust gas of engine
Full Title
Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas > peculiar to engines having other non-fuel gas added to combustion air > the other gas being the exhaust gas of engine
2 direct subcodes
Child Classifications
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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