CPC Subclass Not Allocatable
B61J SHIFTING OR SHUNTING OF RAIL VEHICLES (shifting vehicles in general B60S; marshalling systems B61B)
Description
B61J covers apparatus and methods for shifting, moving, or shunting individual rail vehicles or trains within rail yards, depots, and sidings. This includes mechanical, hydraulic, and electrical systems for coupling, uncoupling, and repositioning rail cars, as well as specialized equipment such as retarders, buffers, and propulsion devices used in marshalling operations. The classification excludes general railway vehicle design (B61D) and track-switching mechanisms (B61L), focusing specifically on the equipment and techniques that facilitate the tactical movement of rolling stock.
3 direct subcodes
Child Classifications
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- B61J 1/00 Turntables; Traversers; Transporting rail vehicles on other rail vehicles or dollies (shunting B61J3/00)
- B61J 3/00 Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car propelling devices therefor (overhead travelling cranes combined with auxiliary means for shunting railway vehicles B66C17/26; capstans B66D)
- B61J 99/00 Subject matter not provided for in other groups of this subclass
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