Robert W. Dinning

Follow

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Differential pressure operated free piston for lifting well fluids
- Patent number 6,045,335
- Issue date Apr 4, 2000
- Robert W. Dinning
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gas operated plunger for lifting well fluids
- Patent number 5,427,504
- Issue date Jun 27, 1995
- Robert W. Dinning
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gas lift type casing pump
- Patent number 4,923,372
- Issue date May 8, 1990
- Ferguson Beauregard Inc.
- Paul L. Ferguson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for placing and removing well flow control devices
- Patent number 4,765,403
- Issue date Aug 23, 1988
- Douglas W. Crawford
- E21 - EARTH DRILLING MINING
Information Patent Grant
No-shock pressure plug apparatus
- Patent number 4,114,694
- Issue date Sep 19, 1978
- Brown Oil Tools, Inc.
- Robert W. Dinning
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pneumatically powered pump system
- Patent number 3,963,377
- Issue date Jun 15, 1976
- Schlumberger Technology Corporation
- J. Kelly Elliott
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Artificial lift well apparatus
- Patent number 3,937,280
- Issue date Feb 10, 1976
- Macco Oil Tool Company, Inc.
- Robert W. Dinning
- E21 - EARTH DRILLING MINING