B61L 1/00 Devices along the route controlled by interaction with the vehicle or train (detonators B61L5/20; operation of points or signals by passage of the vehicle B61L11/00, B61L13/00; operation of gates, or gates and signals, by approaching vehicle B61L29/18)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Devices along the route controlled by interaction with the vehicle or train
CPC: Devices along the route controlled by interaction with the vehicle or train (detonators B61L5/20; operation of points or signals by passage of the vehicle B61L11/00, B61L13/00; operation of gates, or gates and signals, by approaching vehicle B61L29/18)
Full Title
Full titles differ between systems:
Devices along the route controlled by interaction with the vehicle or train
Devices along the route controlled by interaction with the vehicle or train (detonators B61L5/20; operation of points or signals by passage of the vehicle B61L11/00, B61L13/00; operation of gates, or gates and signals, by approaching vehicle B61L29/18)
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B61L 1/14 Devices for indicating the passing of the end of the vehicle or train IPC+CPC Available in IPC and CPC
- B61L 1/16 Devices for counting axles; Devices for counting vehicles +6 CPC IPC+CPC Available in IPC and CPC
- B61L 1/18 Railway track circuits (rail joints E01B11/00, e.g. insulated rail joints E01B11/54) +1 CPC IPC+CPC Available in IPC and CPC
- B61L 1/20 Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning 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