Stephen C. Hain

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole hole cleaning joints and method of using same
- Patent number 11,047,180
- Issue date Jun 29, 2021
- National-Oilwell Varco, L.P.
- Michael Joseph Jellison
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE HOLE CLEANING JOINTS AND METHOD OF USING SAME
- Publication number 20160237764
- Publication date Aug 18, 2016
- National-Oilwell Varco, L.P.
- Michael Joseph Jellison
- E21 - EARTH DRILLING MINING