Granted Patent
Utility
US 5,500,597 · App. 08/099,621
Multiple transmit frequency induction logging system with closed loop conversion circuitry for phase and gain variation elimination
Inventors:
Edward Bryant Tickell, Jr., Peter J. Schoch, Lonnie M. Moseley, Dwight Bloomfield
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Jul 30, 1993
Inventors
Edward Bryant Tickell, Jr.
Peter J. Schoch
Lonnie M. Moseley
Dwight Bloomfield
Assignee (at issue)
Computalog Research, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.