Granted Patent
Utility
US 6,554,451 · App. 09/645,939
Luminaire, optical element and method of illuminating an object
Inventor:
Matthijs Keuper
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Aug 25, 2000
Inventor
Matthijs Keuper
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.