Granted Patent
Utility
US 6,528,239 · App. 09/816,018
Method of forming a grating in a waveguide
Inventor:
Dmitry Starodubov
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Mar 22, 2001
Inventor
Dmitry Starodubov
Assignee (at issue)
Sabeus Photonics, 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.