Granted Patent
Utility
US 5,986,224 · App. 09/220,302
Acoustic condition sensor employing a plurality of mutually non-orthogonal waves
Inventor:
Joel C. Kent
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Dec 23, 1998
Inventor
Joel C. Kent
Assignee (at issue)
ELO TouchSystems, 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.