Derek Johnson

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Pentress, WV, US

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Patents Grantslast 30 patents

Information Patent Grant
Methane watchdog system, a cost effective approach to longwall meth...
- Patent number 12,031,888
- Issue date Jul 9, 2024
- West Virginia University
- Derek Johnson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHANE WATCHDOG SYSTEM, A COST EFFECTIVE APPROACH TO LONGWALL METH...
- Publication number 20210348988
- Publication date Nov 11, 2021
- West Virginia University Board of Governors on behalf of West Virginia Univer...
- Derek Johnson
- E21 - EARTH DRILLING MINING