Inventor · disambiguated record

Wencai Chen

Also filed as: CHEN WENCAI

1 granted patent·0 citations·filing 2020–2020

1Inventor score

Technology areasE21B

Files withCNPC CHUANQING DRILLING ENG CO1

Top patents by PatentIndex Score

1 record

0129US11225837B2Dual-speed dual—core enhanced drilling equipmentCNPC CHUANQING DRILLING ENG CO·Filed 2020·Granted Jan 18, 2022·0 cites·20 claims

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