Dale E. Langford

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Lafayette, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Wellbore primary barrier and related systems
- Patent number 6,209,636
- Issue date Apr 3, 2001
- Weatherford/Lamb, Inc.
- John D. Roberts
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for completing a subterranean well and associated methods...
- Patent number 6,092,601
- Issue date Jul 25, 2000
- Halliburton Energy Services, Inc.
- John C. Gano
- E21 - EARTH DRILLING MINING
Information Patent Grant
Whipstock mill
- Patent number 6,056,056
- Issue date May 2, 2000
- Douglas G. Durst
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellbore milling system and method
- Patent number 5,806,595
- Issue date Sep 15, 1998
- Weatherford/Lamb, Inc.
- Dale E. Langford
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sidetracking operations
- Patent number 5,803,176
- Issue date Sep 8, 1998
- Weatherford/Lamb, Inc.
- William A. Blizzard
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellbore milling guide and method
- Patent number 5,727,629
- Issue date Mar 17, 1998
- Weatherford/Lamb, Inc.
- William A. Blizzard
- E21 - EARTH DRILLING MINING