Granted Patent
Utility
US 6,090,311 · App. 09/203,145
Alkali iodide doped zinc sulfide electroluminescent phoshor
Inventors:
Nathaniel E. Brese, Vaddi B. Reddy
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Dec 1, 1998
Inventors
Nathaniel E. Brese
Vaddi B. Reddy
Assignee (at issue)
OSRAM SYLVANIA 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.