Field briefing
B61C · Locomotives
Locomotives; motor railcars. Patents classified in CPC B61C, part of Manufacturing and transport.
Dates, owners, statuses and filings come from the published records. Derived views are counted from them. Highlighted text is a plain-English AI reading, written from a patent's title and abstract. Legal statuses and expiry dates are estimates, not legal advice.
Who works on this, where, and with whom
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Connected industries
Other industries that share patents, companies or citations with Locomotives.
Newest patents in B61C · Locomotives
2 patents imported from the European Patent Office; newest published 2021-12-31; most active companies: Crrc Dalian Inst Co Ltd, CSR Ziyang Locomotive Co Ltd, Dalian Crrc Zetong Machinery Co Ltd.
- Power system of hybrid power motor train unit CN113859271A, published 2021-12-31
- Hybrid power locomotive CN105197019A, published 2015-12-30
Most active companies
Counted over the newest 2 imported patents in this industry.
- Crrc Dalian Inst Co Ltd 1 patent
- CSR Ziyang Locomotive Co Ltd 1 patent
- Dalian Crrc Zetong Machinery Co Ltd 1 patent