Darryl K. Mackie

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric ball valve mechanism
- Patent number 11,867,022
- Issue date Jan 9, 2024
- Halliburton Energy Services, Inc.
- Adam Davis Wright
- E21 - EARTH DRILLING MINING
Information Patent Grant
Annulus access valve
- Patent number 10,450,836
- Issue date Oct 22, 2019
- Halliburton Energy Services, Inc.
- Darryl Kenneth Mackie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for separating a tubular string from a subsea...
- Patent number 8,393,397
- Issue date Mar 12, 2013
- Halliburton Energy Services, Inc.
- Ross John Trewhella
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC BALL VALVE MECHANISM
- Publication number 20220003070
- Publication date Jan 6, 2022
- Halliburton Energy Services, Inc.
- Adam Davis Wright
- E21 - EARTH DRILLING MINING
Information Patent Application
Annulus Access Valve
- Publication number 20180355697
- Publication date Dec 13, 2018
- Halliburton Energy Services, Inc.
- Darryl Kenneth Mackie
- E21 - EARTH DRILLING MINING
Information Patent Application
Apparatus and Method for Separating a Tubular String from a Subsea...
- Publication number 20110226482
- Publication date Sep 22, 2011
- Halliburton Energy Services, Inc.
- Ross John Trewhella
- E21 - EARTH DRILLING MINING