CPC Subgroup Additional Only
F02G 2242/08 having gas actuated valves, e.g. "Bush engines"
Full Title
Ericsson-type engines having open regenerative cycles controlled by valves > Displacer-type engines > having constant working volume > with external drive displacers > having gas actuated valves, e.g. "Bush 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