Granted Patent
Utility
US 5,805,721 · App. 08/659,417
Method and apparatus for contrast enhancement
Inventors:
Pieter Vuylsteke, Emile Schoeters
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Jun 6, 1996
Inventors
Pieter Vuylsteke
Emile Schoeters
Assignee (at issue)
Agfa-Gevaert NV
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.