Granted Patent
Utility
US 6,238,944 · App. 09/471,746
Buried heterostructure vertical-cavity surface-emitting laser diodes using impurity induced layer disordering (IILD) via a buried impurity source
Inventor:
Philip D. Floyd
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Dec 21, 1999
Inventor
Philip D. Floyd
Assignee (at issue)
Xerox Corporation
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.