Granted Patent
Utility
US 6,563,142 · App. 09/904,015
Reducing the variation of far-field radiation patterns of flipchip light emitting diodes
Inventors:
Yu-Chen Shen, Daniel Steigerwald
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Jul 11, 2001
Inventors
Yu-Chen Shen
Daniel Steigerwald
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.