Guilherme Eppinghaus

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Bit-run nominal seat protector and method of operating same
- Patent number 8,074,724
- Issue date Dec 13, 2011
- Vetco Gray Inc.
- Marc Minassian
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BIT-RUN NOMINAL SEAT PROTECTOR AND METHOD OF OPERATING SAME
- Publication number 20100243271
- Publication date Sep 30, 2010
- Vetco Gray Inc.
- Marc Minassian
- E21 - EARTH DRILLING MINING