Granted Patent
Utility
US 6,492,979 · App. 09/391,352
Dual sensor touchscreen utilizing projective-capacitive and force touch sensors
Inventors:
Joel C. Kent, Geoffrey D. Wilson
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Sep 7, 1999
Inventors
Joel C. Kent
Geoffrey D. Wilson
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.