Nicolas A. Haugen

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St. Louis Park, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotating control device with multiple seal cartridge
- Patent number 11,236,575
- Issue date Feb 1, 2022
- NTDrill Holdings, LLC
- Earl Dietrich
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Rotating Control Device with Multiple Seal Cartridge
- Publication number 20200232297
- Publication date Jul 23, 2020
- NTDrill Holdings, LLC
- Earl Dietrich
- E21 - EARTH DRILLING MINING