Hugh Douglas

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Cheltenham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Current-shaping circuit for use with magnetic couplers downhole
- Patent number 11,081,989
- Issue date Aug 3, 2021
- Halliburton Energy Services, Inc.
- Hugh Douglas
- E21 - EARTH DRILLING MINING
Information Patent Grant
Direct current power source with reduced link capacitance for downh...
- Patent number 10,408,020
- Issue date Sep 10, 2019
- Halliburton Energy Services, Inc.
- Satish Rajagopalan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Down-hole communication across a mud motor
- Patent number 10,060,257
- Issue date Aug 28, 2018
- Halliburton Energy Services, Inc.
- Hugh Douglas
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
A Current-Shaping Circuit For Use With Magnetic Couplers Downhole
- Publication number 20180241331
- Publication date Aug 23, 2018
- Halliburton Energy Services, Inc.
- Hugh Douglas
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DIRECT CURRENT POWER SOURCE WITH REDUCED LINK CAPACITANCE FOR DOWNH...
- Publication number 20180223632
- Publication date Aug 9, 2018
- Halliburton Energy Services, Inc.
- Satish Rajagopalan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Down-Hole Communication Across a Mud Motor
- Publication number 20170145817
- Publication date May 25, 2017
- Halliburton Energy Services, Inc.
- Hugh Douglas
- E21 - EARTH DRILLING MINING