Inventor
BARKER JAMES M
US40 patents
⚠️ This page may combine multiple inventors who share the name “BARKER JAMES M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BOEING CO
10 patentsUS9470732B2Oct 18, 2016
Compact spacecraft antenna field aperture load coupler
BOEING CO7 citations79
US6448869B1Sep 10, 2002
E-plane offset transitions in a switchable waveguide
BOEING CO10 citations74
US9373880B2Jun 21, 2016
Enhanced hybrid-tee coupler
BOEING CO5 citations73
US9350064B2May 24, 2016
Power division and recombination network with internal signal adjustment
BOEING CO3 citations73
US10897090B2Jan 19, 2021
Electronics and filter-integrated, dual-polarized transition and radiator for phased array sensors
BOEING CO5 citations69
US6657521B2Dec 2, 2003
Microwave waveguide filter having rectangular cavities, and method for its fabrication
BOEING CO2 citations62
US10985468B2Apr 20, 2021
Half-patch launcher to provide a signal to a waveguide
BOEING CO1 citations56
US9997820B2Jun 12, 2018
Enhanced hybrid-tee coupler
BOEING CO0 citations52
US6489858B2Dec 3, 2002
H-plane offset transitions in a switchable waveguide
BOEING CO1 citations52
US11081773B2Aug 3, 2021
Apparatus for splitting, amplifying and launching signals into a waveguide to provide a combined transmission signal
BOEING CO0 citations45
HALLIBURTON CO
8 patentsUS4762067AAug 9, 1988
Downhole perforating method and apparatus using secondary explosive detonators
HALLIBURTON CO157 citations96
US4777878AOct 18, 1988
Exploding bridge wire detonator with shock reflector for oil well usage
HALLIBURTON CO59 citations94
US4678044AJul 7, 1987
Tubing pressure operated initiator for perforating in a well borehole
HALLIBURTON CO34 citations91
US4671356AJun 9, 1987
Through tubing bridge plug and method of installation
HALLIBURTON CO85 citations91
US4759291AJul 26, 1988
Through bulkhead explosive initiator for oil well usage
HALLIBURTON CO48 citations90
US4771827ASep 20, 1988
Automatic drop-off device for perforating guns
HALLIBURTON CO22 citations82
US4693308ASep 15, 1987
Tubing conveyed perforating safety anchor
HALLIBURTON CO18 citations73
USH1675HSep 2, 1997
Hybrid capsule charge
HALLIBURTON CO4 citations62
HALLIBURTON ENERGY SERV INC
7 patentsUS6135206AOct 24, 2000
Apparatus for completing a subterranean well and associated methods of using same
HALLIBURTON ENERGY SERV INC91 citations98
US5813465ASep 29, 1998
Apparatus for completing a subterranean well and associated methods of using same
HALLIBURTON ENERGY SERV INC75 citations96
US6371219B1Apr 16, 2002
Oilwell perforator having metal loaded polymer matrix molded liner and case
HALLIBURTON ENERGY SERV INC70 citations95
US7104326B2Sep 12, 2006
Apparatus and method for severing pipe utilizing a multi-point initiation explosive device
HALLIBURTON ENERGY SERV INC55 citations94
US6729406B1May 4, 2004
Method and apparatus for performing cutting operations in a subterranean well
HALLIBURTON ENERGY SERV INC22 citations90
US6295912B1Oct 2, 2001
Positive alignment insert (PAI) with imbedded explosive
HALLIBURTON ENERGY SERV INC47 citations89
US7172023B2Feb 6, 2007
Perforating gun assembly and method for enhancing perforation depth
HALLIBURTON ENERGY SERV INC38 citations88
HALLIBURTON LOGGING SERVICES
5 patentsUS4944225AJul 31, 1990
Method and apparatus for firing exploding foil initiators over long firing lines
HALLIBURTON LOGGING SERVICES59 citations96
US5031536AJul 16, 1991
High temperature and pressure igniter for downhole percussion coring guns
HALLIBURTON LOGGING SERVICES25 citations92
US4998477AMar 12, 1991
Detonation transfer apparatus for initiating detonation of an insensitive detonating cord utilizing an initiating compound, flyer and shock reflector
HALLIBURTON LOGGING SERVICES55 citations92
US4920883AMay 1, 1990
Detonation transfer methods and apparatus
HALLIBURTON LOGGING SERVICES24 citations92
US4979576ADec 25, 1990
Percussion core gun construction and cable arrangement
HALLIBURTON LOGGING SERVICES14 citations74