David Rand Hill

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Duncan, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Minimizing drivetrain damage from bad discharge valves on positive...
- Patent number 12,366,243
- Issue date Jul 22, 2025
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Engine condition and control through the use of a pump as a dynamom...
- Patent number 12,306,064
- Issue date May 20, 2025
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
ENGINE CONDITION AND CONTROL THROUGH THE USE OF A PUMP AS A DYNAMOM...
- Publication number 20230012856
- Publication date Jan 19, 2023
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- G01 - MEASURING TESTING