Wu Jian-Qun

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic MWD telemetry system incorporating a current sensin...
- Patent number 7,170,423
- Issue date Jan 30, 2007
- Weatherford Canada Partnership
- MacMillan Wisler
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Electromagnetic MWD telemetry system incorporating a current sensin...
- Publication number 20050046588
- Publication date Mar 3, 2005
- MacMillan Wisler
- E21 - EARTH DRILLING MINING