Granted Patent
Utility
US 6,174,394 · App. 08/998,254
Method for thermostable and lightfast dichroic light polarizers
Inventors:
Khan Ir Gvon, Yuri A. Bobrov, Victor A. Bykov, Leonid Y. Ignatov, Tatiana Ivanova, Sergei I. Popov, Elena Y. Shishkina, Georgiy N. Vorozhtsov
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Dec 24, 1997
Inventors
Khan Ir Gvon
Yuri A. Bobrov
Victor A. Bykov
Leonid Y. Ignatov
Tatiana Ivanova
Sergei I. Popov
Elena Y. Shishkina
Georgiy N. Vorozhtsov
Assignee (at issue)
Optiva, 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.