Michael R. Campbell

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Perry, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Configurable beacon and method
- Patent number 7,624,816
- Issue date Dec 1, 2009
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for tracking and communicating with a boring tool
- Patent number 7,350,594
- Issue date Apr 1, 2008
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING
Information Patent Grant
Configurable beacon and method
- Patent number 7,331,409
- Issue date Feb 19, 2008
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for tracking and communicating with a boring tool
- Patent number 7,150,331
- Issue date Dec 19, 2006
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Configurable Beacon And Method
- Publication number 20080121430
- Publication date May 29, 2008
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING
Information Patent Application
System And Method For Tracking And Communicating With A Boring Tool
- Publication number 20070102566
- Publication date May 10, 2007
- The Charles Machine Works, Inc.
- Scott B. Cole
- E21 - EARTH DRILLING MINING
Information Patent Application
Configurable beacon
- Publication number 20050115706
- Publication date Jun 2, 2005
- The Charles Machine Works, Inc.
- Scott B Cole
- E21 - EARTH DRILLING MINING
Information Patent Application
System and method for tracking and communicating with a boring tool
- Publication number 20050023036
- Publication date Feb 3, 2005
- Scott B. Cole
- E21 - EARTH DRILLING MINING