Granted Patent
Utility
US 5,945,980 · App. 08/970,947
Touchpad with active plane for pen detection
Inventors:
Vitali D. Moissev, Vitali P. Sumenkov, Andrev A. Tareev, Aleksey A. Tareev, Roland Singer
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: Nov 14, 1997
Inventors
Vitali D. Moissev
Vitali P. Sumenkov
Andrev A. Tareev
Aleksey A. Tareev
Roland Singer
Assignee (at issue)
LOGITECH, 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.