Charles Li

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Annulus isolation valve
- Patent number 8,464,795
- Issue date Jun 18, 2013
- Aker Solutions Inc.
- Andy Dyson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Tubing hanger seal
- Patent number 8,376,057
- Issue date Feb 19, 2013
- Aker Subsea Inc.
- Andy Dyson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Tubing hanger
- Patent number 8,256,506
- Issue date Sep 4, 2012
- Aker Subsea Inc.
- Andy Dyson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
ANNULUS ISOLATION VALVE
- Publication number 20100139910
- Publication date Jun 10, 2010
- Andy Dyson
- E21 - EARTH DRILLING MINING
Information Patent Application
Tubing Hanger
- Publication number 20100089590
- Publication date Apr 15, 2010
- Andy Dyson
- E21 - EARTH DRILLING MINING
Information Patent Application
TUBING HANGER SEAL
- Publication number 20100084143
- Publication date Apr 8, 2010
- Andy Dyson
- E21 - EARTH DRILLING MINING