Inventor · disambiguated record

Youjing Yuan

Also filed as: YUAN YOUJING

1 granted patent·0 citations·filing 2023–2023

7Inventor score

Technology areasE21B

Files withQINGHAI 906 ENGINEERING SURVEY AND DESIGN INST CO LTD1

Top patents by PatentIndex Score

1 record

0144US12428958B2Hydrogeological drilling-type detection equipmentQINGHAI 906 ENGINEERING SURVEY AND DESIGN INST CO LTD·Filed 2023·Granted Sep 30, 2025·0 cites·10 claims

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