KE WAN

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Chengdu City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Borehole wall spin-shearing device and testing method for in-situ b...
- Patent number 12,241,876
- Issue date Mar 4, 2025
- CHENGDU UNIVERSITY OF TECHNOLOGY
- Wenkai Feng
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
MOBILE DEVICE AND METHOD FOR DETERMINING LOCATION OF MOBILE DEVICE
- Publication number 20130137467
- Publication date May 30, 2013
- YEN-TING KUO
- G01 - MEASURING TESTING