Granted Patent
Utility
US 6,831,771 · App. 10/338,142
Electronic whiteboard using electrophoretic display
Inventors:
Ching-Shon Ho, Jerry Chung, Paul Gendler, Rong-Chang Liang
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Jan 8, 2003
Inventors
Ching-Shon Ho
Jerry Chung
Paul Gendler
Rong-Chang Liang
Assignee (at issue)
SiPix Imaging, Inc.
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.