Granted Patent
Utility
US 6,744,941 · App. 10/414,157
Optical wavelength tunable filter
Inventors:
Sabry Khalfallah, Joel Jacquet
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Apr 16, 2003
Inventors
Sabry Khalfallah
Joel Jacquet
Assignee (at issue)
Avanex 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.