Granted Patent
Utility
US 4,940,943 · App. 07/183,695
Method and apparatus for optimizing the reception pattern of the antenna of a propagating electromagnetic wave logging tool
Inventors:
Roger P. Bartel, Paul F. Rodney
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Apr 19, 1988
Inventors
Roger P. Bartel
Paul F. Rodney
Assignee (at issue)
Baroid Technology, 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.