DIFF Subgroup
F01B 9/08 with ratchet and pawl
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups > with rotary main shaft other than crankshaft > with ratchet and pawl
CPC:
Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 > with rotary main shaft other than crankshaft > with ratchet and pawl
No child classifications to compare. This is a leaf node in both IPC and CPC.
Top Applicants
Top Applicants (IPC)
Class F01,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 8,496
- UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
- SAFRAN AIRCRAFT ENGINES FR 5,503
- TOYOTA MOTOR CORPORATION 4,556
- SIEMENS DE 3,992
- HYUNDAI MOTOR COMPANY KR 3,929
- RAYTHEON TECHNOLOGIES CORPORATION US 3,534
- FORD GLOBAL TECHNOLOGIES US 3,407
- TOYOTA MOTOR CORPORATION JP 3,042
- WEICHAI POWER COMPANY 2,888
Top Applicants (CPC)
Class F01,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063