Granted Patent
Utility
US 6,106,512 · App. 09/209,058
Numeric keypad simulated on touchscreen
Inventors:
Bruce Robert Cochran, Christopher Michael Eberhardt, John A. Painter
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Dec 9, 1998
Inventors
Bruce Robert Cochran
Christopher Michael Eberhardt
John A. Painter
Assignee (at issue)
Bausch & Lomb Surgical, 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.