Granted Patent
Utility
US 6,676,263 · App. 10/212,010
Performance improvements of symmetry-breaking reflector structures in nonimaging devices
Inventor:
Roland Winston
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Aug 1, 2002
Inventor
Roland Winston
Assignee (at issue)
The University of Chicago
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.