Granted Patent
Utility
US 6,682,664 · App. 10/235,243
High brightness orange-yellow-emitting electroluminescent phosphor and method of making
Inventors:
Xianzhong Chen, Robert L. Stevens, Judy A. Belinski-Wolfe, Fuqiang Huang, Chen-Wen Fan, Michael A. Maxwell
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Sep 5, 2002
Inventors
Xianzhong Chen
Robert L. Stevens
Judy A. Belinski-Wolfe
Fuqiang Huang
Chen-Wen Fan
Michael A. Maxwell
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.