Granted Patent
Utility
US 6,236,476 · App. 09/058,134
Apparatus for making a high quality reflection type holographic optical element
Inventors:
Jung Young Son, Vadim V. Smirnov, Hyung Wook Jeon
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Apr 10, 1998
Inventors
Jung Young Son
Vadim V. Smirnov
Hyung Wook Jeon
Assignee (at issue)
Korea Institute of Science and Technology
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.