Mark J. Clarkson

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Slip ring apparatus for a rotary steerable tool
- Patent number 8,157,002
- Issue date Apr 17, 2012
- Smith International Inc.
- Mark J. Clarkson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SLIP RING APPARATUS FOR A ROTARY STEERABLE TOOL
- Publication number 20110017473
- Publication date Jan 27, 2011
- Smith International, Inc.
- Mark J. Clarkson
- E21 - EARTH DRILLING MINING