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IPC Subgroup
B61H 13/2

Transmitting mechanisms

Introduced: September 1968

Last revised: January 2006

Full Title

Actuating rail-vehicle brakes > Transmitting mechanisms

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
RAILWAYS
Subclass:
BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES

Filing statistics

IPC B61H 13/2 belongs to the parent subclass B61H, which recorded 8,841 patent applications worldwide between 2013 and 2023. Annual filings grew from 611 in 2013 to 732 in 2023 (+20%), peaking at 1,019 applications in 2020. The most active applicants in class B61 are SIEMENS MOBILITY (2,749 applications), CRRC QINGDAO SIFANG COMPANY (2,215 applications) and SIEMENS (1,941 applications).

Source: EPO PATSTAT, worldwide filings

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 2,749
  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