CPC Subgroup
B61L 19/06 Interlocking devices having electrical operation
Full Title
Arrangements for interlocking between points and signals by means of a single interlocking device > Interlocking devices having electrical operation
4 direct subcodes
Child Classifications
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- B61L 19/08 Special arrangements for power supply for interlocking devices
- B61L 19/10 with mechanical locks
- B61L 19/14 with electrical locks
Top Applicants
Top 10 applicants by patent filingsfor 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