Kent T. Fink

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Glen Ellyn, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Travelling disc valve apparatus
- Patent number RE34758
- Issue date Oct 18, 1994
- Osca
- David L. Farley
- 166 - Wells
Information Patent Grant
Up and down travelling disc valve assembly apparatus
- Patent number 5,205,361
- Issue date Apr 27, 1993
- Completion Services, Inc.
- David Farley
- E21 - EARTH DRILLING MINING
Information Patent Grant
Travelling disc valve apparatus
- Patent number 5,137,088
- Issue date Aug 11, 1992
- Completion Services, Inc.
- David L. Farley
- E21 - EARTH DRILLING MINING