Inventor
BONNER STEPHEN D
US24 patents
⚠️ This page may combine multiple inventors who share the name “BONNER STEPHEN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
14 patentsUS6297639B1Oct 2, 2001
Method and apparatus for directional well logging with a shield having sloped slots
SCHLUMBERGER TECHNOLOGY CORP213 citations99
US5359324AOct 25, 1994
Well logging apparatus for investigating earth formations
SCHLUMBERGER TECHNOLOGY CORP124 citations99
US5339036AAug 16, 1994
Logging while drilling apparatus with blade mounted electrode for determining resistivity of surrounding formation
SCHLUMBERGER TECHNOLOGY CORP171 citations99
US5235285AAug 10, 1993
Well logging apparatus having toroidal induction antenna for measuring, while drilling, resistivity of earth formations
SCHLUMBERGER TECHNOLOGY CORP293 citations99
US5200705AApr 6, 1993
Dipmeter apparatus and method using transducer array having longitudinally spaced transducers
SCHLUMBERGER TECHNOLOGY CORP182 citations99
US6351127B1Feb 26, 2002
Shielding method and apparatus for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP91 citations98
US5339037AAug 16, 1994
Apparatus and method for determining the resistivity of earth formations
SCHLUMBERGER TECHNOLOGY CORP183 citations97
US6557794B2May 6, 2003
Coil shielding method for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP42 citations96
US6380744B2Apr 30, 2002
Shielding apparatus for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP42 citations96
US4292589ASep 29, 1981
Eddy current method and apparatus for inspecting ferromagnetic tubular members
SCHLUMBERGER TECHNOLOGY CORP142 citations96
US5463320AOct 31, 1995
Apparatus and method for determining the resitivity of underground formations surrounding a borehole
SCHLUMBERGER TECHNOLOGY CORP65 citations93
US7091877B2Aug 15, 2006
Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
SCHLUMBERGER TECHNOLOGY CORP30 citations92
US6933726B2Aug 23, 2005
Apparatus and methods for reducing borehole current effects
SCHLUMBERGER TECHNOLOGY CORP29 citations92
US7619540B2Nov 17, 2009
Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion
SCHLUMBERGER TECHNOLOGY CORP9 citations78
ISODRILL INC
5 patentsUS9657561B1May 23, 2017
Downhole power conversion and management using a dynamically variable displacement pump
ISODRILL INC11 citations81
US10760414B1Sep 1, 2020
Data transmission system
ISODRILL INC2 citations71
US10822884B1Nov 3, 2020
Data transmission system
ISODRILL INC4 citations68
US10641050B1May 5, 2020
Data transmission system
ISODRILL INC1 citations58
US11499381B2Nov 15, 2022
Data transmission system
ISODRILL INC0 citations47