Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Dual focused resistivity logging method and apparatus with dynamic range reduction

Dual focused resistivity logging method and apparatus with dynamic range reduction

US Patent 4282486 · Granted Aug 4, 1981

Estimated economic value: $11,052,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method using a d.c. source for determining resistivity distribution of the earth1989
Method for geophysical exploration using electromagnetic array1988
Electromagnetic array profiling survey method1986
Method and apparatus for determining neutron characteristics of borehole fluids1985
Method and apparatus for neutron induced gamma ray logging for direct porosity i1980