with two or more rotors connected by power transmission

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Gas-turbine plants characterised by the use of combustion products as the working fluid > having a turbine driving a compressor > with two or more rotors connected by power transmission

CPC:

Gas-turbine plants characterised by the use of combustion products as the working fluid (generated by intermittent combustion F02C5/00) > having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16) > with two or more rotors connected by power transmission

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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F02C 3/113 with variable power transmission between rotors since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

TOYOTA MOTOR CORPORATION 8,687
ROBERT BOSCH DE 8,328
FORD GLOBAL TECHNOLOGIES US 7,423
GE (GENERAL ELECTRIC COMPANY) US 5,732
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
HYUNDAI MOTOR COMPANY KR 4,699
TOYOTA MOTOR CORPORATION JP 4,541
DENSO CORPORATION 3,711
WEICHAI POWER COMPANY 3,486
SAFRAN AIRCRAFT ENGINES FR 3,249

Top Applicants (CPC)

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