Granted Patent
Utility
US 6,806,980 · App. 09/750,568
Adaptive illumination correction of scanned images
Inventors:
Beilei Xu, Robert P. Loce
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Dec 28, 2000
Inventors
Beilei Xu
Robert P. Loce
Assignee (at issue)
Xerox 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.