Richard W. Adams

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Bryan, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Stage cementing valve
- Patent number 4,880,058
- Issue date Nov 14, 1989
- Lindsey Completion Systems, Inc.
- Hiram E. Lindsey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Liner hanger with collapsible ball valve seat
- Patent number 4,862,966
- Issue date Sep 5, 1989
- Lindsey Completion Systems, Inc.
- Hiram E. Lindsey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Liner hanger with retrievable ball valve seat
- Patent number 4,828,037
- Issue date May 9, 1989
- Lindsey Completion Systems, Inc.
- Hiram E. Lindsey
- E21 - EARTH DRILLING MINING