David Anderson

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Denver, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods and devices for isolating wellhead pressure
- Patent number 10,435,979
- Issue date Oct 8, 2019
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and devices for isolating wellhead pressure
- Patent number 8,960,308
- Issue date Feb 24, 2015
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and devices for isolating wellhead pressure
- Patent number 8,544,551
- Issue date Oct 1, 2013
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE
- Publication number 20150152706
- Publication date Jun 4, 2015
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Application
METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE
- Publication number 20140020894
- Publication date Jan 23, 2014
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Application
METHODS AND DEVICES FOR ISOLATING WELLHEAD PRESSURE
- Publication number 20110011599
- Publication date Jan 20, 2011
- Cameron International Corporation
- Dennis P. Nguyen
- E21 - EARTH DRILLING MINING