Granted Patent
Utility
US 6,804,779 · App. 09/480,742
Hierarchical watermarking of content that is distributed via a network
Inventors:
Germano Carroni, Amit Gupta, Radia J. Perlman
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Jan 10, 2000
Inventors
Germano Carroni
Amit Gupta
Radia J. Perlman
Assignee (at issue)
Sun Microsystems 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.