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PCE
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DIFF Subgroup
B61G 5/02

for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

Introduced: September 1968

Title

Titles differ between systems:

IPC: for coupling articulated trains, locomotives and tenders, or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

CPC: for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

Full Title

Full titles differ between systems:

IPC:

Couplings not otherwise provided for > for coupling articulated trains, locomotives and tenders, or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

CPC:

Couplings for special purposes not otherwise provided for > for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

No child classifications to compare. This is a leaf node in both 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