Granted Patent
Utility
US 6,798,894 · App. 09/778,307
Method and apparatus for watermarking video images
Inventor:
Geoffrey B. Rhoads
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Feb 6, 2001
Inventor
Geoffrey B. Rhoads
Assignee (at issue)
Digimarc Corporation
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.