Granted Patent
Utility
US 6,439,465 · App. 09/404,962
Encoding small amounts of embedded digital data at arbitrary locations within an image
Inventor:
Dan S. Bloomberg
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Sep 24, 1999
Inventor
Dan S. Bloomberg
Assignee (at issue)
Xerox 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.