Darcy Nott

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Annulus pressure control drilling systems and methods
- Patent number 8,122,975
- Issue date Feb 28, 2012
- Weatherford/Lamb, Inc.
- Gary Belcher
- E21 - EARTH DRILLING MINING
Information Patent Grant
Annulus pressure control drilling systems and methods
- Patent number 7,836,973
- Issue date Nov 23, 2010
- Weatherford/Lamb, Inc.
- Gary Belcher
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and apparatus for drilling with a multiphase pump
- Patent number 7,066,247
- Issue date Jun 27, 2006
- Weatherford/Lamb, Inc.
- Bryan V. Butler
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and apparatus for drilling with a multiphase pump
- Patent number 6,966,367
- Issue date Nov 22, 2005
- Weatherford/Lamb, Inc.
- Bryan V. Butler
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ANNULUS PRESSURE CONTROL DRILLING SYSTEMS AND METHODS
- Publication number 20110114387
- Publication date May 19, 2011
- Gary Belcher
- E21 - EARTH DRILLING MINING
Information Patent Application
ANNULUS PRESSURE CONTROL DRILLING SYSTEMS AND METHODS
- Publication number 20080060846
- Publication date Mar 13, 2008
- Gary Belcher
- E21 - EARTH DRILLING MINING
Information Patent Application
Methods and apparatus for drilling with a multiphase pump
- Publication number 20060005999
- Publication date Jan 12, 2006
- Bryan V. Butler
- E21 - EARTH DRILLING MINING
Information Patent Application
Methods and apparatus for drilling with a multiphase pump
- Publication number 20040031622
- Publication date Feb 19, 2004
- Bryan V. Butler
- E21 - EARTH DRILLING MINING