Xianwei DAI

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Patents Grantslast 30 patents

Information Patent Grant
Two-stage reverse-torque bent screw orientation tool
- Patent number 12,110,794
- Issue date Oct 8, 2024
- CHENGDU UNIVERSITY OF TECHNOLOGY
- Qingyou Liu
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD, APPARATUS AND SYSTEM FOR AUTOMATICALLY ADJUSTING OPENING DE...
- Publication number 20240310861
- Publication date Sep 19, 2024
- Chengdu University of Technology
- Jianguo ZHAO
- G05 - CONTROLLING REGULATING
Information Patent Application
TWO-STAGE REVERSE-TORQUE BENT SCREW ORIENTATION TOOL
- Publication number 20240093554
- Publication date Mar 21, 2024
- Chengdu University of Technology
- Qingyou LIU
- E21 - EARTH DRILLING MINING