IPC Main Group
B61C 17/00 Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- RAILWAYS
- Subclass:
- LOCOMOTIVES; MOTOR RAILCARS
6 direct subcodes
Child Classifications
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- B61C 17/02 Bunkers; Tanks; Tenders; Water or fuel pick-up or scoop apparatus; Water or fuel supply fittings
- B61C 17/04 Arrangement or disposition of driving cabins, footplates, or engine rooms; Ventilation thereof
- B61C 17/06 Power storing devices
- B61C 17/08 Lubrication systems
- B61C 17/1 Connecting-rods for driving wheels; Arrangements of their bearings
- B61C 17/12 Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
Top Applicants
Top 10 applicants by patent filingsfor class B61, 2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS MOBILITY DE 2,749
- CRRC QINGDAO SIFANG COMPANY 2,215
- SIEMENS DE 1,941
- ALSTOM TRANSPORT TECHNOLOGIES FR 1,514
- BYD COMPANY 1,371
- CRRC CHANGCHUN RAILWAY VEHICLES COMPANY 1,205
- CRRC ZHUZHOU LOCOMOTIVE COMPANY 1,165
- CRRC TANGSHAN COMPANY 1,119
- BOMBARDIER TRANSPORTATION DE 1,001
- SOUTHWEST JIAOTONG UNIVERSITY 958