Granted Patent
Utility
US 6,388,806 · App. 09/797,043
Upgradable, gain flattened fiber amplifiers for WDM applications
Inventors:
Paul N. Freeman, Stephen G. Grubb, Daniel Ratoff, David G. Mehuys
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Feb 28, 2001
Inventors
Paul N. Freeman
Stephen G. Grubb
Daniel Ratoff
David G. Mehuys
Assignee (at issue)
SDL Limited
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.