Northstar Drillstem Testers, Inc.

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Calgary, Alberta, CA

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Patents Grantslast 30 patents

Information Patent Grant
Anti-extrusion assembly and a sealing system comprising same
- Patent number 11,542,775
- Issue date Jan 3, 2023
- NORTHSTAR DRILLSTEM TESTERS
- Andrew Horne
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ANTI-EXTRUSION ASSEMBLY AND A SEALING SYSTEM COMPRISING SAME
- Publication number 20210246757
- Publication date Aug 12, 2021
- NORTHSTAR DRILLSTEM TESTERS
- Andrew Horne
- E21 - EARTH DRILLING MINING

Trademarklast 30 trademarks

Information Trademark
85287578 - NORTHSTAR
- Serial number 85287578
- Filing date Apr 6, 2011
- Northstar Drillstem Testers, Inc.
- 42 - Scientific and technological services and research and design relating thereto