Granted Patent
Utility
US 6,067,475 · App. 09/186,795
Microwave energy delivery system including high performance dual directional coupler for precisely measuring forward and reverse microwave power during thermal therapy
Inventors:
Kenneth L. Graves, Eric N. Rudie
Patented Case
View Patent ↗
Granted: May 23, 2000
Filed: Nov 5, 1998
Inventors
Kenneth L. Graves
Eric N. Rudie
Assignee (at issue)
Urologix, 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.