Granted Patent
Utility
US 6,476,375 · App. 09/480,817
Optical sensor for pointing device with conical disks and single photodetector
Inventors:
Jean-Daniel Nicoud, Rene Sommer, Marc Bidiville
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jan 10, 2000
Inventors
Jean-Daniel Nicoud
Rene Sommer
Marc Bidiville
Assignee (at issue)
Logitech Europe S.A.
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.