Inventor

RICHARDS W MARK

US2 patents

Patents

2 patents

US7152688B2Dec 26, 2006

Positioning tool with valved fluid diversion path and method

HALLIBURTON ENERGY SERV INC41 citations86

US7252153B2Aug 7, 2007

Bi-directional fluid loss device and method

HALLIBURTON ENERGY SERV INC25 citations85