Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for determining formation resistivity in a cased well using three electrodes arranged in a wheatstone bridge

Method and apparatus for determining formation resistivity in a cased well using three electrodes arranged in a wheatstone bridge

US Patent 5563514 · Granted Oct 8, 1996

Estimated economic value: $118,982,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

System and method for detecting adversarial attacks2022
Echo modulation methods and system2016
Echo modulation methods and systems2013
Motion compensation apparatus and method of gyroscopic instruments for determini1995
Spectrum analysis arrangement and automatic interception receiving station compr1990
Insulation displacement connector1990
Apparatus for conduit free-point detection in boreholes1982
Downhole cable tension measuring apparatus1981
Method and apparatus for automatically inscribing magnetic marks on a wireline1980