Todd Douglas COOPER

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The Woodlands, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Managed pressure cementing
- Patent number 9,951,600
- Issue date Apr 24, 2018
- Weatherford Technology Holdings, LLC
- Don M. Hannegan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Managed pressure cementing
- Patent number 9,249,646
- Issue date Feb 2, 2016
- Weatherford Technology Holdings, LLC
- Don M. Hannegan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Diverter plugs for use in well bores and associated methods of use
- Patent number 7,350,578
- Issue date Apr 1, 2008
- Halliburton Energy Services, Inc.
- David D. Szarka
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
MANAGED PRESSURE CEMENTING
- Publication number 20160145995
- Publication date May 26, 2016
- Weatherford Technology Holdings, LLC.
- Don M. HANNEGAN
- E21 - EARTH DRILLING MINING
Information Patent Application
MANAGED PRESSURE CEMENTING
- Publication number 20130118752
- Publication date May 16, 2013
- WEATHERFORD/LAMB, INC.
- Don M. Hannegan
- E21 - EARTH DRILLING MINING
Information Patent Application
Diverter plugs for use in well bores and associated methods of use
- Publication number 20070095538
- Publication date May 3, 2007
- David D. Szarka
- E21 - EARTH DRILLING MINING