John Stepchinsky

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Biased lug cartridge, wear bushing with biased lug cartridge, and s...
- Patent number 12,209,466
- Issue date Jan 28, 2025
- Innovex International, Inc.
- John Stepchinsky
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BIASED LUG CARTRIDGE, WEAR BUSHING WITH BIASED LUG CARTRIDGE, AND S...
- Publication number 20230417111
- Publication date Dec 28, 2023
- Dril-Quip, Inc.
- John Stepchinsky
- E21 - EARTH DRILLING MINING