Inventor
ROY CARL J
US7 patents
Patents
7 patentsUS6179055B1Jan 30, 2001
Conveying a tool along a non-vertical well
SCHLUMBERGER TECHNOLOGY CORP155 citations97
US6920936B2Jul 26, 2005
Constant force actuator
SCHLUMBERGER TECHNOLOGY CORP93 citations96
US6629568B2Oct 7, 2003
Bi-directional grip mechanism for a wide range of bore sizes
SCHLUMBERGER TECHNOLOGY CORP124 citations96
US7334642B2Feb 26, 2008
Constant force actuator
SCHLUMBERGER TECHNOLOGY CORP55 citations95
US7516782B2Apr 14, 2009
Self-anchoring device with force amplification
SCHLUMBERGER TECHNOLOGY CORP48 citations94
US7854258B2Dec 21, 2010
Self-anchoring device with force amplification
SCHLUMBERGER TECHNOLOGY CORP24 citations90
US7156192B2Jan 2, 2007
Open hole tractor with tracks
SCHLUMBERGER TECHNOLOGY CORP37 citations89