Granted Patent
Utility
US 5,579,421 · App. 08/560,755
Optical integrated circuits and methods
Inventors:
Charles Duvall, Ian A. White, Henry H. Yaffe
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Nov 21, 1995
Inventors
Charles Duvall
Ian A. White
Henry H. Yaffe
Assignee (at issue)
LUCENT TECHNOLOGIES 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.