Assignee
CHINA RAILWAY NO 2 ENG GROUP CO LTD
CN·2 granted patents·0 citations·filing 2020–2023
Top patents by PatentIndex Score
2 records- 0140US11829687B2Method for inversion of corresponding line mileage and offset by using known coordinate pointCHINA RAILWAY NO 2 ENG GROUP CO LTD·Filed 2023·Granted Nov 28, 2023·0 cites·11 claims
- 0232US11391004B1Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girderCHINA RAILWAY NO 2 ENG GROUP CO LTD·Filed 2020·Granted Jul 19, 2022·0 cites·2 claims
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