Door arrangements specially adapted for rail vehicles (locks for vehicles E05B77/00-E05B85/00; door-operating mechanisms E05F)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Door arrangements specially adapted for rail vehicles

CPC: Door arrangements specially adapted for rail vehicles (locks for vehicles E05B77/00-E05B85/00; door-operating mechanisms E05F)

Full Title

Full titles differ between systems:

IPC:

Door arrangements specially adapted for rail vehicles

CPC:

Door arrangements specially adapted for rail vehicles (locks for vehicles E05B77/00-E05B85/00; door-operating mechanisms E05F)

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B61D 19/001 +1 CPC CPC only CPC only
B61D 19/003 +4 CPC CPC only CPC only
B61D 19/02 for carriages (B61D19/003 takes precedence) +2 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B61,2013–2023, worldwide · Source: EPO PATSTAT

SIEMENS MOBILITY DE 2,749
CRRC QINGDAO SIFANG COMPANY 2,215
SIEMENS DE 1,941
ALSTOM TRANSPORT TECHNOLOGIES FR 1,514
BYD COMPANY 1,371
CRRC CHANGCHUN RAILWAY VEHICLES COMPANY 1,205
CRRC ZHUZHOU LOCOMOTIVE COMPANY 1,165
CRRC TANGSHAN COMPANY 1,119
BOMBARDIER TRANSPORTATION DE 1,001
SOUTHWEST JIAOTONG UNIVERSITY 958

Top Applicants (CPC)

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