Kevin CHRISTENSON

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Millet, CA

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Patents Grantslast 30 patents

Information Patent Grant
Fixed cutter drill bit with rotating cutter disc
- Patent number 8,881,848
- Issue date Nov 11, 2014
- Ulterra Drilling Technologies, L.P.
- Craig Knull
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
FIXED CUTTER DRILL BIT WITH ROTATING CUTTER DISC
- Publication number 20130292185
- Publication date Nov 7, 2013
- Ulterra Drilling Technologies, L.P.
- CRAIG KNULL
- E21 - EARTH DRILLING MINING