Granted Patent
Utility
US 5,919,142 · App. 08/994,757
Electrical impedance tomography method and apparatus
Inventors:
Kevin Graham Boone, David Holder
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Dec 19, 1997
Inventors
Kevin Graham Boone
David Holder
Assignee (at issue)
BTG INTERNATIONAL 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.