Granted Patent
Utility
US 5,451,723 · App. 08/347,946
Acoustic wave touch panel for use with a non-active stylus
Inventors:
Jianming Huang, Terence J. Knowles
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Dec 1, 1994
Inventors
Jianming Huang
Terence J. Knowles
Assignee (at issue)
Carroll Touch, 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.