Granted Patent
Utility
US 6,680,569 · App. 10/083,314
Red-deficiency compensating phosphor light emitting device
Inventors:
Regina B. Mueller-Mach, Gerd O. Mueller, Tomas Jüestel, Peter Josef Schmidt
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Feb 25, 2002
Inventors
Regina B. Mueller-Mach
Gerd O. Mueller
Tomas Jüestel
Peter Josef Schmidt
Assignee (at issue)
Lumileds Lighting US, LLC
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.