Jefferson P. Ashton

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Conroe, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Gravel pack screen having retention mesh support and fluid permeabl...
- Patent number 5,150,753
- Issue date Sep 29, 1992
- Baker Hughes Incorporated
- John E. Gaidry
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gravel pack screen having retention means and fluid permeable parti...
- Patent number 5,115,864
- Issue date May 26, 1992
- Baker Hughes Incorporated
- John E. Gaidry
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gravel pack screen having retention means and fluid permeable parti...
- Patent number 5,050,678
- Issue date Sep 24, 1991
- Baker Hughes Incorporated
- John E. Gaidry
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gravel pack screen having retention mesh support and fluid permeabl...
- Patent number 4,917,183
- Issue date Apr 17, 1990
- Baker Hughes Incorporated
- John E. Gaidry
- E21 - EARTH DRILLING MINING