Granted Patent
Utility
US 5,172,187 · App. 07/681,154
Method of determining the pretilt angle of liquid crystal molecules
Inventor:
Stefan Brosig
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Apr 5, 1991
Inventor
Stefan Brosig
Assignee (at issue)
Nokia Unterhaltungselektronik GmbH
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.