Granted Patent
Utility
US 6,549,331 · App. 09/956,175
Polarization insensitive semiconductor optical amplifier
Inventors:
Jeffrey D. Walker, Sol P. DiJaili, Richard Ratowsky
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Sep 18, 2001
Inventors
Jeffrey D. Walker
Sol P. DiJaili
Richard Ratowsky
Assignee (at issue)
Genoa 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.