Granted Patent
Utility
US 5,982,442 · App. 08/980,240
Method and filter for reducing the blocking effect in image transmission and storage
Inventor:
Philippe Guntzburger
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Nov 28, 1997
Inventor
Philippe Guntzburger
Assignee (at issue)
Alcatel Alsthom Compagnie Generale d'Electricite
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.