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PCE
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CPC Subgroup
B61G 3/22

with coupling heads rigidly connected by locks consisting of pivoted latches

Full Title

Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements > with coupling heads rigidly connected by locks consisting of pivoted latches

2 direct subcodes

Child Classifications

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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