Granted Patent
Utility
US 6,198,693 · App. 09/059,503
System and method for finding the direction of a wave source using an array of sensors
Inventor:
Joseph Marash
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Apr 13, 1998
Inventor
Joseph Marash
Assignee (at issue)
Andrea Electronics Corporation
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.