Granted Patent
Utility
US 6,798,568 · App. 10/134,412
Polarization independent semiconductor optical amplifier
Inventors:
Steve Wang, Frank H. Levinson
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Apr 29, 2002
Inventors
Steve Wang
Frank H. Levinson
Assignee (at issue)
FINISAR CORPORATION
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.