Granted Patent
Utility
US 6,641,051 · App. 09/404,755
System for embedded digital data that allows embedding of data around known obstructions
Inventors:
Daniel Illowsky, Dan S. Bloomberg, Robert Eugene Weltman
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Sep 24, 1999
Inventors
Daniel Illowsky
Dan S. Bloomberg
Robert Eugene Weltman
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.