CPC Main Group
B61G 11/00 Buffers (springs F16F)
7 direct subcodes
Child Classifications
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- B61G 11/02 with metal springs
- B61G 11/08 with rubber springs
- B61G 11/10 with combined rubber and metal springs
- B61G 11/12 with fluid springs or shock-absorbers; Combinations thereof
- B61G 11/14 absorbing shocks by mechanical friction action; Combinations of mechanical shock-absorbers and springs (B61G11/06 takes precedence)
- B61G 11/16 absorbing shocks by permanent deformation of buffer element
- B61G 11/18 Details
Top Applicants
Top 10 applicants by patent filingsfor class B61, 2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS MOBILITY DE 2,967
- SIEMENS DE 2,133
- ALSTOM TRANSPORT TECHNOLOGIES FR 1,691
- CRRC QINGDAO SIFANG COMPANY 1,100
- BOMBARDIER TRANSPORTATION DE 1,085
- MITSUBISHI ELECTRIC CORPORATION JP 880
- BYD COMPANY 821
- KRRI KR 761
- HITACHI JP 752
- CRRC ZHUZHOU LOCOMOTIVE COMPANY 721