B61L 7/10 for light signals, e.g. for supervision, back-signalling
Introduced: September 1968
Title
Titles differ between systems:
IPC: for light signals, e.g. for supervision, back- signalling
CPC: for light signals, e.g. for supervision, back-signalling
Full Title
Full titles differ between systems:
Remote control of local operating means for points, signals, or track-mounted scotch-blocks > using electrical transmission > Circuitry > for light signals, e.g. for supervision, back- signalling
Remote control of local operating means for points, signals, or track-mounted scotch-blocks (B61L11/00, B61L13/00 take precedence; interlocking arrangements B61L19/00) > using electrical transmission > Circuitry > for light signals, e.g. for supervision, back-signalling
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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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