IPC Main Group
B61K 11/00 Serving peculiar to locomotives, e.g. filling with, or emptying of, water, sand, or the like at the depots
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- RAILWAYS
- Subclass:
- AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
Related Keywords
FILLING stations for rail locomotivesservicing of rail LOCOMOTIVESservicing of RAILWAY(S),RAILROAD(S) locomotivesSERVICE stations for railway locomotivesSERVICING of rail locomotivesfilling STATIONS or service STATIONS for rail locomotives
1 direct subcode
Child Classifications
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- B61K 11/02 Water columns for locomotives
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