DAVID BARRETT

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Albany, AU

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Patents Grantslast 30 patents

Information Patent Grant
Underground drill rig and systems and methods of using same
- Patent number 11,873,714
- Issue date Jan 16, 2024
- Longyear TM, Inc.
- Paul Clausen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Underground Drill Rig And Systems And Methods Of Using Same
- Publication number 20240159107
- Publication date May 16, 2024
- LONGYEAR TM, INC.
- Paul Clausen
- E21 - EARTH DRILLING MINING
Information Patent Application
UNDERGROUND DRILL RIG AND SYSTEMS AND METHODS OF USING SAME
- Publication number 20220186561
- Publication date Jun 16, 2022
- BLY IP INC.
- PAUL CLAUSEN
- E21 - EARTH DRILLING MINING