Granted Patent
Utility
US 5,119,450 · App. 07/747,763
Broad wavelength range single mode integrated optics device
Inventors:
Tirumala R. Ranganath, David W. Dolfi
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Aug 20, 1991
Inventors
Tirumala R. Ranganath
David W. Dolfi
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.