CPC Subgroup
B61C 9/38 Transmission systems in or for locomotives or motor railcars with electric motor propulsion (electrical features B60L)
Full Title
Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars (machine elements F16) > Transmission systems in or for locomotives or motor railcars with electric motor propulsion (electrical features B60L)
6 direct subcodes
Child Classifications
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- B61C 9/40 with cranked axles and coupling rods
- B61C 9/42 hydraulic
- B61C 9/44 with hollow transmission shaft concentric with wheel axis
- B61C 9/46 with motors forming parts of wheels
- B61C 9/48 with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C 9/52 with transmission shafts at an angle to the driving axles
Top Applicants
Top 10 applicants by patent filingsfor class B61, 2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS MOBILITY DE 2,967
- SIEMENS DE 2,133
- ALSTOM TRANSPORT TECHNOLOGIES FR 1,691
- CRRC QINGDAO SIFANG COMPANY 1,100
- BOMBARDIER TRANSPORTATION DE 1,085
- MITSUBISHI ELECTRIC CORPORATION JP 880
- BYD COMPANY 821
- KRRI KR 761
- HITACHI JP 752
- CRRC ZHUZHOU LOCOMOTIVE COMPANY 721