Granted Patent
Utility
US 6,830,789 · App. 09/937,210
Chiral additives for cholesteric displays
Inventors:
Joseph W. Doane, Asad A. Khan, Alexander Seed
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Sep 24, 2001
Inventors
Joseph W. Doane
Asad A. Khan
Alexander Seed
Assignees (at issue)
Kent Displays, Inc.
Kent State University
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.