Granted Patent
Utility
US 5,214,517 · App. 07/531,266
Digital halftoning with correlated minimum visual modulation patterns
Inventors:
James R. Sullivan, Lawrence A. Ray
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: May 29, 1990
Inventors
James R. Sullivan
Lawrence A. Ray
Assignee (at issue)
EASTMAN KODAK COMPANY
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.