Granted Patent
Utility
US 6,084,994 · App. 09/054,032
Tunable, low back-reflection wavelength division multiplexer
Inventors:
Wei Li, Feng Liu, Haiguang Lu
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Apr 2, 1998
Inventors
Wei Li
Feng Liu
Haiguang Lu
Assignee (at issue)
Oplink Communications, LLC
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.