Granted Patent
Utility
US 5,903,690 · App. 09/136,145
Method for changing the refraction index in germanium silicate glass
Inventors:
Dmitry Starodubov, Evgeny Mikhailovich Dianov, Artem Frolov
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Aug 18, 1998
Inventors
Dmitry Starodubov
Evgeny Mikhailovich Dianov
Artem Frolov
Assignee (at issue)
D-Star Technologies, 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.