CPC Subgroup
B61F 17/30 with grease
Full Title
Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general F16N) > with grease
2 direct subcodes
Child Classifications
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- B61F 17/32 by manually-operated lubricators, e.g. screw cups
- B61F 17/34 by automatic means, e.g. with spring action
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