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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B61G 5/06

for, or combined with, couplings or connectors for fluid conduits or electric cables

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Couplings not otherwise provided for > for, or combined with, couplings or connectors for fluid conduits or electric cables

CPC:

Couplings for special purposes not otherwise provided for > for, or combined with, couplings or connectors for fluid conduits or electric cables

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • B61G 5/08 for fluid conduits IPC+CPC Available in IPC and CPC
  • B61G 5/10 for electric cables 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