Keith R. Ferguson

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Anchorage, AK, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole build-up pressure test using coiled tubing
- Patent number 6,116,340
- Issue date Sep 12, 2000
- Atlantic Richfield Company
- Scott James Wilson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Over-pressured well fracturing with surface reservoir and actuator...
- Patent number 5,617,921
- Issue date Apr 8, 1997
- Atlantic Richfield Company
- Joseph H. Schmidt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for sealing perforated well casing
- Patent number 5,613,557
- Issue date Mar 25, 1997
- Atlantic Richfield Company
- Curtis G. Blount
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for blocking well perforations
- Patent number 5,456,319
- Issue date Oct 10, 1995
- Atlantic Richfield Company
- Joseph H. Schmidt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Over-pressured well fracturing method
- Patent number 5,370,187
- Issue date Dec 6, 1994
- Atlantic Richfield Company
- Keith R. Ferguson
- E21 - EARTH DRILLING MINING