Granted Patent
Utility
US 6,546,113 · App. 09/260,510
Method and apparatus for video watermarking
Inventors:
Keith Lucas, William van Rassel
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Mar 2, 1999
Inventors
Keith Lucas
William van Rassel
Assignee (at issue)
LEITCH TECHNOLOGY INTERNATIONAL 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.