Granted Patent
Utility
US 6,697,547 · App. 09/855,765
Wavelength power equalization by attenuation in an optical switch
Inventors:
Tony Walter, Dan Blumenthal, John E. Bowers, Peter Hunt, Roger Helkey, Xuezhe Zheng
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: May 14, 2001
Inventors
Tony Walter
Dan Blumenthal
John E. Bowers
Peter Hunt
Roger Helkey
Xuezhe Zheng
Assignee (at issue)
Calient Networks, 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.