IPC Main Group
B61D 3/00 Wagons or vans
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- RAILWAYS
- Subclass:
- BODY DETAILS OR KINDS OF RAILWAY VEHICLES
Related Keywords
railway WAGONS
6 direct subcodes
Child Classifications
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- B61D 3/02 with multiple deck arrangements
- B61D 3/04 with movable floors, e.g. rotatable or floors which can be raised or lowered
- B61D 3/06 Flat-bottomed cars convertible into hoppers
- B61D 3/08 Flat wagons including posts or standards
- B61D 3/1 Articulated vehicles
- B61D 3/16 adapted for carrying special loads
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