William R. Welch

Person

Carrollton, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Static wellhead plug
- Patent number 5,996,697
- Issue date Dec 7, 1999
- Halliburton Energy Services, Inc.
- James D. Vick
- E21 - EARTH DRILLING MINING
Information Patent Grant
Running tool for static wellhead plug
- Patent number 5,988,277
- Issue date Nov 23, 1999
- Halliburton Energy Services, Inc.
- James D. Vick
- E21 - EARTH DRILLING MINING
Information Patent Grant
Verification apparatus and method for a static wellhead plug
- Patent number 5,957,201
- Issue date Sep 28, 1999
- Halliburton Energy Services, Inc.
- James D. Vick
- E21 - EARTH DRILLING MINING
Information Patent Grant
Static wellhead plug and associated methods of plugging wellheads
- Patent number 5,875,851
- Issue date Mar 2, 1999
- Halliburton Energy Services, Inc.
- James D. Vick
- E21 - EARTH DRILLING MINING
Information Patent Grant
Metal-to-metal sliding side door for wells
- Patent number 5,794,699
- Issue date Aug 18, 1998
- Halliburton Energy Services, Inc.
- Robert C. Hammett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and systems for subterranean multilateral well drilling and...
- Patent number 5,735,350
- Issue date Apr 7, 1998
- Halliburton Energy Services, Inc.
- James R. Longbottom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and systems for subterranean multilateral well drilling and...
- Patent number 5,564,503
- Issue date Oct 15, 1996
- Halliburton Company
- James R. Longbottom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Internally sealable perforable nipple for downhole well applications
- Patent number 5,390,742
- Issue date Feb 21, 1995
- Halliburton Company
- Christopher A. Dines
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sonde supported operating system for control of formation productio...
- Patent number 5,375,659
- Issue date Dec 27, 1994
- Halliburton Logging Services Inc.
- Gregory N. Gilbert
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electromechanical shifter apparatus for subsurface well flow control
- Patent number 5,355,953
- Issue date Oct 18, 1994
- Halliburton Company
- Perry C. Shy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electromechanical shifter apparatus for subsurface well flow control
- Patent number 5,309,988
- Issue date May 10, 1994
- Halliburton Company
- Perry C. Shy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lock mandrel latch assembly
- Patent number 4,997,038
- Issue date Mar 5, 1991
- Otis Engineering Corporation
- William R. Welch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well tool locking system for staggered bore
- Patent number 4,962,813
- Issue date Oct 16, 1990
- Otis Engineering Corporation
- William R. Welch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Locator shifter tool
- Patent number 4,896,721
- Issue date Jan 30, 1990
- Otis Engineering Corporation
- William R. Welch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve
- Patent number 4,441,558
- Issue date Apr 10, 1984
- Otis Engineering Corporation
- William R. Welch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shifting tool
- Patent number 4,436,152
- Issue date Mar 13, 1984
- Otis Engineering Corporation
- Ernest P. Fisher
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well flow control apparatus
- Patent number 4,432,416
- Issue date Feb 21, 1984
- Otis Engineering Corporation
- William R. Welch
- E21 - EARTH DRILLING MINING

William R. Welch

Person

Patents Grantslast 30 patents

Static wellhead plug

Running tool for static wellhead plug

Verification apparatus and method for a static wellhead plug

Static wellhead plug and associated methods of plugging wellheads

Metal-to-metal sliding side door for wells

Methods and systems for subterranean multilateral well drilling and...

Methods and systems for subterranean multilateral well drilling and...

Internally sealable perforable nipple for downhole well applications

Sonde supported operating system for control of formation productio...

Electromechanical shifter apparatus for subsurface well flow control

Electromechanical shifter apparatus for subsurface well flow control

Lock mandrel latch assembly

Well tool locking system for staggered bore

Locator shifter tool

Valve

Shifting tool

Well flow control apparatus