Granted Patent
Utility
US 6,408,087 · App. 09/006,691
Capacitive semiconductor user input device
Inventor:
Alan Kramer
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Jan 13, 1998
Inventor
Alan Kramer
Assignee (at issue)
STMICROELECTRONICS, 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.