Granted Patent
Utility
US 6,424,413 · App. 09/097,312
Multi-channel integrating sphere
Inventors:
William L. Weber, Harold Van Aken, Perry Palumbo, Joseph Corrado
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jun 12, 1998
Inventors
William L. Weber
Harold Van Aken
Perry Palumbo
Joseph Corrado
Assignee (at issue)
GretagMacbeth, 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.