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IPC Main Group
B61C 1/00

Steam locomotives or railcars

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
RAILWAYS
Subclass:
LOCOMOTIVES; MOTOR RAILCARS

7 direct subcodes

Child Classifications

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  • B61C 1/02 of articulated construction; with two or more engines
  • B61C 1/04 with steam accumulators
  • B61C 1/06 Streamlining
  • B61C 1/08 Arrangement or disposition of combustion apparatus or accessories therefor
  • B61C 1/1 Arrangement or disposition of steam generators
  • B61C 1/12 Arrangement or disposition of condensers
  • B61C 1/14 Arrangement or disposition of exhaust apparatus

Top Applicants

Top 10 applicants by patent filingsfor class B61, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SIEMENS MOBILITY DE 2,749
  2. CRRC QINGDAO SIFANG COMPANY 2,215
  3. SIEMENS DE 1,941
  4. ALSTOM TRANSPORT TECHNOLOGIES FR 1,514
  5. BYD COMPANY 1,371
  6. CRRC CHANGCHUN RAILWAY VEHICLES COMPANY 1,205
  7. CRRC ZHUZHOU LOCOMOTIVE COMPANY 1,165
  8. CRRC TANGSHAN COMPANY 1,119
  9. BOMBARDIER TRANSPORTATION DE 1,001
  10. SOUTHWEST JIAOTONG UNIVERSITY 958