Granted Patent
Utility
US 5,825,892 · App. 08/738,930
Protecting images with an image watermark
Inventors:
Gordon W. Braudaway, Frederick C. Mintzer
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Oct 28, 1996
Inventors
Gordon W. Braudaway
Frederick C. Mintzer
Assignee (at issue)
International Business Machines 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.