Inventor
JACKSON STEPHEN L
US20 patents
⚠️ This page may combine multiple inventors who share the name “JACKSON STEPHEN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
5 patentsUS6298916B1Oct 9, 2001
Method and apparatus for controlling fluid flow in conduits
SCHLUMBERGER TECHNOLOGY CORP158 citations97
US6269683B1Aug 7, 2001
System and method for pressure testing the fittings and seals associated with the communication lines of a well tool
SCHLUMBERGER TECHNOLOGY CORP21 citations92
US6481496B1Nov 19, 2002
Well packer and method
SCHLUMBERGER TECHNOLOGY CORP42 citations91
US6516890B1Feb 11, 2003
Apparatus and method for preventing the inadvertent activation of the actuating mechanism of a well tool
SCHLUMBERGER TECHNOLOGY CORP11 citations73
US6487893B2Dec 3, 2002
Apparatus and method for pressure testing the sealing engagement of the fittings associated with the communication lines of a well tool
SCHLUMBERGER TECHNOLOGY CORP3 citations62
WEATHERFORD LAMB
4 patentsUS6691789B2Feb 17, 2004
Expandable hanger and packer
WEATHERFORD LAMB73 citations98
US7673689B2Mar 9, 2010
Dual flapper barrier valve
WEATHERFORD LAMB23 citations92
US7377327B2May 27, 2008
Variable choke valve
WEATHERFORD LAMB32 citations92
US6860330B2Mar 1, 2005
Choke valve assembly for downhole flow control
WEATHERFORD LAMB40 citations92
SOMMERS MICHAEL T
3 patentsUS8267178B1Sep 18, 2012
Valve for hydraulic fracturing through cement outside casing
SOMMERS MICHAEL T90 citations95
US8915300B2Dec 23, 2014
Valve for hydraulic fracturing through cement outside casing
SOMMERS MICHAEL T5 citations81
US9121251B2Sep 1, 2015
Valve for hydraulic fracturing through cement outside casing
SOMMERS MICHAEL T3 citations60