James Chungyu Chan

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Irvine, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole connector
- Patent number 9,863,204
- Issue date Jan 9, 2018
- Sabritec
- James Chungyu Chan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE CONNECTOR
- Publication number 20150285008
- Publication date Oct 8, 2015
- Sabritec
- James Chungyu Chan
- E21 - EARTH DRILLING MINING