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CPC Subgroup
B61H 13/20

Transmitting mechanisms

Full Title

Actuating rail-vehicle brakes > Transmitting mechanisms

5 direct subcodes

Child Classifications

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  • B61H 13/22 for braking a single wheel or wheels at one side only, e.g. for locomotives or motor railcars
  • B61H 13/24 for cars with two axles or bogies with two axles and braking cylinder(s) for each bogie, the mechanisms at each side being interconnected
  • B61H 13/26 for cars or bogies with more than two axles or bogies, the mechanisms at each side being interconnected
  • B61H 13/28 with variable leverage or mechanical advantage to obtain quick take-up

Top Applicants

Top 10 applicants by patent filingsfor 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