Inventor · disambiguated record
Lingchao Xuan
Also filed as: XUAN LINGCHAO
5 granted patents·0 citations·filing 2020–2022
57Inventor score
Files withCHINA PETROLEUM & CHEM CORP5
Top patents by PatentIndex Score
5 records- 0150US12480365B2State self-adaptive turbine type pulse generator and downhole drilling toolCHINA PETROLEUM & CHEM CORP·Filed 2022·Granted Nov 25, 2025·0 cites·17 claims
- 0238US12031410B2Well drilling tool and method for determining parameter thereofCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Jul 9, 2024·0 cites·14 claims
- 0336US11898417B2Drilling speed increasing deviceCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Feb 13, 2024·0 cites·16 claims
- 0435US11920437B2Well drilling acceleration toolCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Mar 5, 2024·0 cites·17 claims
- 0534US11946342B2Drilling toolCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Apr 2, 2024·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →