Granted Patent
Utility
US 6,580,657 · App. 09/754,489
Low-power organic light emitting diode pixel circuit
Inventors:
James L. Sanford, Eugene S. Schlig
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jan 4, 2001
Inventors
James L. Sanford
Eugene S. Schlig
Assignee (at issue)
International Business Machines 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.