IPC Main Group
B61D 15/00 Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- RAILWAYS
- Subclass:
- BODY DETAILS OR KINDS OF RAILWAY VEHICLES
4 direct subcodes
Child Classifications
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- B61D 15/02 Breakdown cranes
- B61D 15/04 convertible into other non-vehicular apparatus, e.g. exhibition stands
- B61D 15/06 Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions
- B61D 15/08 Railway inspection trolleys
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