Granted Patent
Utility
US 6,744,502 · App. 09/964,778
Shaped illumination geometry and intensity using a diffractive optical element
Inventors:
Louis B. Hoff, Mark F. Oldham
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Sep 28, 2001
Inventors
Louis B. Hoff
Mark F. Oldham
Assignee (at issue)
PE Corporation (NY)
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.