Granted Patent
Utility
US 6,466,021 · App. 09/594,582
Deep underground imaging utilizing resistivity regularization for magnetotelluric processing
Inventor:
David C. MacEnany
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Jun 8, 2000
Inventor
David C. MacEnany
Assignee (at issue)
Apti 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.