Granted Patent
Utility
US 5,938,811 · App. 08/862,557
Method for altering the temperature dependence of optical waveguides devices
Inventor:
Benjamin I. Greene
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: May 23, 1997
Inventor
Benjamin I. Greene
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.