Granted Patent
Utility
US 5,754,718 · App. 08/701,796
Hybrid optical filtering circuit
Inventors:
Gary S. Duck, Yihao Cheng, Mark Farries
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Aug 26, 1996
Inventors
Gary S. Duck
Yihao Cheng
Mark Farries
Assignee (at issue)
JDS Fitel 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.