CPC Main Group
B61C 1/00 Steam locomotives or railcars (engines F01; characterised by power transmissions B61C9/00; boilers F22B)
7 direct subcodes
Child Classifications
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- B61C 1/02 of articulated construction; with two or more engines (appliances of booster engines B61C15/02)
- B61C 1/04 with steam accumulators (steam accumulators F01K)
- B61C 1/06 Streamlining (of coachwork B61D)
- B61C 1/08 Arrangement or disposition of combustion apparatus or accessories therefor
- B61C 1/10 Arrangement or disposition of steam generators
- B61C 1/12 Arrangement or disposition of condensers
- B61C 1/14 Arrangement or disposition of exhaust apparatus
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