Granted Patent
Utility
US 6,807,356 · App. 10/013,258
Fiber-coupled optical attenuator
Inventors:
Brian L. Heffner, Long Yang
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Dec 10, 2001
Inventors
Brian L. Heffner
Long Yang
Assignee (at issue)
JDS Uniphase 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.