CPC Subgroup
B61D 15/12 power propelled
Full Title
Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways (conveyor frames mounted for movement on rail tracks B65G41/02; wheeled machines used in permanent way construction or maintenance E01B) > Railway inspection trolleys > power propelled
1 direct subcode
Child Classifications
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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