William Carr

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Pipe handling device and safety mechanism
- Patent number 8,037,932
- Issue date Oct 18, 2011
- Tesco Corporation
- William Carr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pipe handling device and safety mechanism
- Patent number 7,673,675
- Issue date Mar 9, 2010
- Tesco Corporation
- William Carr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Top drive assembly
- Patent number 7,270,189
- Issue date Sep 18, 2007
- Tesco Corporation
- Matthew Brown
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Pipe Handling Device and Safety Mechanism
- Publication number 20100132936
- Publication date Jun 3, 2010
- TESCO Corporation
- William Carr
- E21 - EARTH DRILLING MINING
Information Patent Application
Pipe Handling Device and Safety Mechanism
- Publication number 20080190598
- Publication date Aug 14, 2008
- TESCO CORPORATION
- William Carr
- E21 - EARTH DRILLING MINING
Information Patent Application
TOP DRIVE ASSEMBLY
- Publication number 20070240908
- Publication date Oct 18, 2007
- TESCO Corporation
- MATTHEW BROWN
- E21 - EARTH DRILLING MINING
Information Patent Application
Top drive assembly
- Publication number 20060096751
- Publication date May 11, 2006
- Matthew Brown
- E21 - EARTH DRILLING MINING