Donald H. Perkins

Person

Carrollton, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fiber optic differential pressure sensor
- Patent number 7,458,273
- Issue date Dec 2, 2008
- WellDynamics, B.V.
- Neal G. Skinner
- G01 - MEASURING TESTING
Information Patent Grant
Fiber optic differential pressure sensor
- Patent number 7,159,468
- Issue date Jan 9, 2007
- Halliburton Energy Services, Inc.
- Neal G. Skinner
- G01 - MEASURING TESTING
Information Patent Grant
Monitor and control circuit for electric surface controlled subsurf...
- Patent number 5,293,551
- Issue date Mar 8, 1994
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole reeled tubing inspection system with fiberoptic cable
- Patent number 5,275,038
- Issue date Jan 4, 1994
- Otis Engineering Corporation
- Phillip S. Sizer
- G02 - OPTICS
Information Patent Grant
Method for manufacturing electric surface controlled subsurface val...
- Patent number 5,070,595
- Issue date Dec 10, 1991
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electric surface controlled subsurface valve system
- Patent number 4,981,173
- Issue date Jan 1, 1991
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electric surface controlled subsurface valve system
- Patent number 4,886,114
- Issue date Dec 12, 1989
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Solenoid operated safety valve and submersible pump system
- Patent number 4,798,247
- Issue date Jan 17, 1989
- Otis Engineering Corporation
- Thomas M. Deaton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ball valve structure
- Patent number 4,738,431
- Issue date Apr 19, 1988
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well packer
- Patent number 4,582,134
- Issue date Apr 15, 1986
- Otis Engineering Corporation
- John C. Gano
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well packer
- Patent number 4,512,399
- Issue date Apr 23, 1985
- Otis Engineering Corporation
- John C. Gano
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dual string well packer
- Patent number 4,413,677
- Issue date Nov 8, 1983
- Otis Engineering Corporation
- Donald H. Perkins
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Fiber Optic Differential Pressure Sensor
- Publication number 20070068262
- Publication date Mar 29, 2007
- Neal G. Skinner
- E21 - EARTH DRILLING MINING
Information Patent Application
Fiber optic differential pressure sensor
- Publication number 20050274194
- Publication date Dec 15, 2005
- Neal G. Skinner
- E21 - EARTH DRILLING MINING

Donald H. Perkins

Person

Patents Grantslast 30 patents

Fiber optic differential pressure sensor

Fiber optic differential pressure sensor

Monitor and control circuit for electric surface controlled subsurf...

Downhole reeled tubing inspection system with fiberoptic cable

Method for manufacturing electric surface controlled subsurface val...

Electric surface controlled subsurface valve system

Electric surface controlled subsurface valve system

Solenoid operated safety valve and submersible pump system

Ball valve structure

Well packer

Well packer

Dual string well packer

Patents Applicationslast 30 patents

Fiber Optic Differential Pressure Sensor

Fiber optic differential pressure sensor