Granted Patent
Utility
US 6,633,671 · App. 09/239,920
Camera-based handwriting tracking
Inventors:
Mario E. Munich, Pietro Perona
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Jan 28, 1999
Inventors
Mario E. Munich
Pietro Perona
Assignee (at issue)
California Institute of Technology
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.