Granted Patent
Utility
US 6,248,018 · App. 09/153,567
Electromagnetic pointing device using varying overlap of coils and conductive elements
Inventors:
Florian Kehlstadt, Antoine Merminod, Marc Bidiville, Rene Sommer, Denes Karai
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Sep 15, 1998
Inventors
Florian Kehlstadt
Antoine Merminod
Marc Bidiville
Rene Sommer
Denes Karai
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.