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DIFF 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

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B61C 17/02 Bunkers; Tanks; Tenders (coachwork B61D); Water or fuel pick-up or scoop apparatus; Water or fuel supply fittings (trackside installations, e.g. bunkers, tanks, for filling locomotives with sand or water B61K11/00) IPC+CPC Available in IPC and CPC
  • B61C 17/04 Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof (driving cabins and accessories B61D) IPC+CPC Available in IPC and CPC
  • B61C 17/06 Power storing devices IPC+CPC Available in IPC and CPC
  • B61C 17/08 Lubrication systems (in general F16N) IPC+CPC Available in IPC and CPC
  • B61C 17/10 Connecting-rods for driving wheels; Arrangements of their bearings (connection-rods or bearings, in general F16C7/00, B61C9/04) IPC+CPC Available in IPC and CPC
  • B61C 17/12 Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units (control from points outside the train B61L3/00; fluid-actuated telemotors, servomotors F15B; control devices in general G05) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B61,2013–2023, worldwide · Source: EPO PATSTAT

  1. SIEMENS MOBILITY DE 2,967
  2. SIEMENS DE 2,133
  3. ALSTOM TRANSPORT TECHNOLOGIES FR 1,691
  4. CRRC QINGDAO SIFANG COMPANY 1,100
  5. BOMBARDIER TRANSPORTATION DE 1,085
  6. MITSUBISHI ELECTRIC CORPORATION JP 880
  7. BYD COMPANY 821
  8. KRRI KR 761
  9. HITACHI JP 752
  10. CRRC ZHUZHOU LOCOMOTIVE COMPANY 721