Inventor
RORDEN LOUIS H
US22 patents
⚠️ This page may combine multiple inventors who share the name “RORDEN LOUIS H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEVELCO
15 patentsUS4710708ADec 1, 1987
Method and apparatus employing received independent magnetic field components of a transmitted alternating magnetic field for determining location
DEVELCO658 citations99
US3967201AJun 29, 1976
Wireless subterranean signaling method
DEVELCO182 citations99
US5089779AFeb 18, 1992
Method and apparatus for measuring strata resistivity adjacent a borehole
DEVELCO128 citations98
US4908804AMar 13, 1990
Combinatorial coded telemetry in MWD
DEVELCO54 citations96
US4787093ANov 22, 1988
Combinatorial coded telemetry
DEVELCO65 citations96
US5067114ANov 19, 1991
Correlation for combinational coded telemetry
DEVELCO23 citations92
US4823125AApr 18, 1989
Method and apparatus for stabilizing a communication sensor in a borehole
DEVELCO35 citations92
US3956690AMay 11, 1976
Trimmed superconductive magnetic pickup coil circuits
DEVELCO49 citations92
US4587741AMay 13, 1986
Ball inclinometer
DEVELCO40 citations91
US4736791AApr 12, 1988
Subsurface device actuator requiring minimum power
DEVELCO29 citations90
US4646831AMar 3, 1987
Precision connector for well instrumentation
DEVELCO30 citations89
US4953616ASep 4, 1990
Solenoid actuator and pulse drive
DEVELCO14 citations71
US4878053AOct 31, 1989
Actuation method
DEVELCO9 citations71
US4926188AMay 15, 1990
Gimballed antenna
DEVELCO2 citations62
US5027129AJun 25, 1991
Gimballed antenna
DEVELCO1 citations52
BAKER HUGHES INC
6 patentsUS5442294AAug 15, 1995
Conductivity method and apparatus for measuring strata resistivity adjacent a borehole
BAKER HUGHES INC130 citations98
US6208586B1Mar 27, 2001
Method and apparatus for communicating data in a wellbore and for detecting the influx of gas
BAKER HUGHES INC109 citations97
US5850369ADec 15, 1998
Method and apparatus for communicating data in a wellbore and for detecting the influx of gas
BAKER HUGHES INC102 citations97
US5592438AJan 7, 1997
Method and apparatus for communicating data in a wellbore and for detecting the influx of gas
BAKER HUGHES INC160 citations97
US5283768AFeb 1, 1994
Borehole liquid acoustic wave transducer
BAKER HUGHES INC93 citations96
US5260662ANov 9, 1993
Conductivity method and apparatus for measuring strata resistivity adjacent a borehole
BAKER HUGHES INC50 citations92