Granted Patent
Utility
US 6,285,774 · App. 09/092,898
System and methodology for tracing to a source of unauthorized copying of prerecorded proprietary material, such as movies
Inventors:
Robert Wilhelm Schumann, Siu-Leong Iu, Kobad Bugwadia, Guillaume Mercier, Shiva Ramadoss, Michael Bergeron, Jack Ehrhardt
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jun 8, 1998
Inventors
Robert Wilhelm Schumann
Siu-Leong Iu
Kobad Bugwadia
Guillaume Mercier
Shiva Ramadoss
Michael Bergeron
Jack Ehrhardt
Assignee (at issue)
Digital Video Express, L.P.
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.