CPC Main Group Additional Only
B61L 2205/00 Communication or navigation systems for railway traffic
2 direct subcodes
Child Classifications
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- B61L 2205/02 Global system for mobile communication - railways [GSM-R]
- B61L 2205/04 Satellite based navigation systems, e.g. global positioning system [GPS]
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