Inventor
WILLIAMSON JR JIMMIE R
US39 patents
⚠️ This page may combine multiple inventors who share the name “WILLIAMSON JR JIMMIE R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERV INC
11 patentsUS7866402B2Jan 11, 2011
Circulation control valve and associated method
HALLIBURTON ENERGY SERV INC62 citations98
US6536530B2Mar 25, 2003
Hydraulic control system for downhole tools
HALLIBURTON ENERGY SERV INC136 citations98
US6668936B2Dec 30, 2003
Hydraulic control system for downhole tools
HALLIBURTON ENERGY SERV INC108 citations97
US7644767B2Jan 12, 2010
Safety valve with flapper/flow tube friction reducer
HALLIBURTON ENERGY SERV INC35 citations92
US7640989B2Jan 5, 2010
Electrically operated well tools
HALLIBURTON ENERGY SERV INC37 citations92
US7370709B2May 13, 2008
Subterranean magnetic field protective shield
HALLIBURTON ENERGY SERV INC39 citations92
US7597151B2Oct 6, 2009
Hydraulically operated formation isolation valve for underbalanced drilling applications
HALLIBURTON ENERGY SERV INC42 citations90
US7926573B2Apr 19, 2011
Circulation control valve and associated method
HALLIBURTON ENERGY SERV INC19 citations89
US8869881B2Oct 28, 2014
Eccentric safety valve
HALLIBURTON ENERGY SERV INC8 citations84
US8038120B2Oct 18, 2011
Magnetically coupled safety valve with satellite outer magnets
HALLIBURTON ENERGY SERV INC13 citations84
US7597149B2Oct 6, 2009
Safety valve with extension springs
HALLIBURTON ENERGY SERV INC10 citations79
HALLIBURTON ENERGY SERVICES INC
9 patentsUS9010448B2Apr 21, 2015
Safety valve with electrical actuator and tubing pressure balancing
HALLIBURTON ENERGY SERVICES INC10 citations83
US10107050B2Oct 23, 2018
Pressure equalization apparatus and associated systems and methods
HALLIBURTON ENERGY SERVICES INC3 citations73
US9574423B2Feb 21, 2017
Safety valve with electrical actuator and tubing pressure balancing
HALLIBURTON ENERGY SERVICES INC4 citations72
US9068425B2Jun 30, 2015
Safety valve with electrical actuator and tubing pressure balancing
HALLIBURTON ENERGY SERVICES INC4 citations72
US10280709B2May 7, 2019
Valves for autonomous actuation of downhole tools
HALLIBURTON ENERGY SERVICES INC2 citations66
US11078730B2Aug 3, 2021
Pressure equalization apparatus and associated systems and methods
HALLIBURTON ENERGY SERVICES INC0 citations62
US9650864B2May 16, 2017
Remotely operated production valve and method
HALLIBURTON ENERGY SERVICES INC0 citations52
US10138708B2Nov 27, 2018
Remotely operated production valve
HALLIBURTON ENERGY SERVICES INC0 citations48
US10435985B2Oct 8, 2019
Valves for autonomous actuation of downhole tools
HALLIBURTON ENERGY SERVICES INC0 citations45
OTIS ENG CO
8 patentsUS5226483AJul 13, 1993
Safety valve landing nipple and method
OTIS ENG CO104 citations96
US4429747AFeb 7, 1984
Well tool
OTIS ENG CO122 citations96
US4396061AAug 2, 1983
Locking mandrel for a well flow conductor
OTIS ENG CO128 citations95
US5314026AMay 24, 1994
Landing nipple
OTIS ENG CO23 citations92
US4691777ASep 8, 1987
Standing and injection valve
OTIS ENG CO23 citations82
US5199494AApr 6, 1993
Safety valve, sealing ring and seal assembly
OTIS ENG CO14 citations74
US4766960AAug 30, 1988
Standing and injection valve
OTIS ENG CO18 citations74
US4502542AMar 5, 1985
Well system
OTIS ENG CO6 citations62
HALLIBURTON CO
4 patentsUS5390735AFeb 21, 1995
Full bore lock system
HALLIBURTON CO207 citations99
US5348087ASep 20, 1994
Full bore lock system
HALLIBURTON CO139 citations98
US5293943AMar 15, 1994
Safety valve, sealing ring and seal assembly
HALLIBURTON CO58 citations96
US5259457ANov 9, 1993
Safety valve, sealing ring and seal assembly
HALLIBURTON CO16 citations74
WILLIAMSON JR JIMMIE R
3 patentsUS8096363B2Jan 17, 2012
Circulation control valve and associated method
WILLIAMSON JR JIMMIE R19 citations91
US9016387B2Apr 28, 2015
Pressure equalization apparatus and associated systems and methods
WILLIAMSON JR JIMMIE R4 citations72
US8662179B2Mar 4, 2014
Remotely operated production valve and method
WILLIAMSON JR JIMMIE R0 citations51