Granted Patent
Utility
US 5,638,197 · App. 08/313,510
Inorganic thin film compensator for improved gray scale performance in twisted nematic liquid crystal displays and method of making
Inventors:
William J. Gunning, III, Bruce K. Winker, Donald B. Taber, Paul H. Kobrin, James C. Beedy, John P. Eblen, Jr.
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Sep 30, 1994
Inventors
William J. Gunning, III
Bruce K. Winker
Donald B. Taber
Paul H. Kobrin
James C. Beedy
John P. Eblen, Jr.
Assignee (at issue)
Rockwell International 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.