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DIFF Main Group
B61G 11/00

Buffers (springs F16F)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Buffers

CPC: Buffers (springs F16F)

Full Title

Full titles differ between systems:

IPC:

Buffers

CPC:

Buffers (springs F16F)

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B61G 11/08 with rubber springs IPC+CPC Available in IPC and CPC
  • B61G 11/10 with combined rubber and metal springs IPC+CPC Available in IPC and CPC
  • B61G 11/12 with fluid springs or shock-absorbers; Combinations thereof IPC+CPC Available in IPC and CPC
  • B61G 11/14 absorbing shocks by mechanical friction action; Combinations of mechanical shock-absorbers and springs (B61G11/06 takes precedence) IPC+CPC Available in IPC and CPC
  • B61G 11/16 absorbing shocks by permanent deformation of buffer element IPC+CPC Available in IPC and CPC
  • B61G 11/18 Details 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