Granted Patent
Utility
US 5,289,112 · App. 07/948,274
Light-emitting diode array current power supply including switched cascode transistors
Inventors:
Charles A. Brown, Billy E. Thayer, Rajeev Badyal
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Sep 21, 1992
Inventors
Charles A. Brown
Billy E. Thayer
Rajeev Badyal
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.