Granted Patent
Utility
US 6,725,372 · App. 09/453,333
Digital watermarking
Inventors:
Arianne M. Lewis, Evert Basch
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Dec 2, 1999
Inventors
Arianne M. Lewis
Evert Basch
Assignee (at issue)
Verizon Laboratories 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.