Granted Patent
Utility
US 6,590,668 · App. 09/456,962
Imaging optical system for direct phase-angle measurement of radiation
Inventors:
Rainer Huber, Junli Sun, Bernd Leitner, Hans Steinbichler
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Dec 7, 1999
Inventors
Rainer Huber
Junli Sun
Bernd Leitner
Hans Steinbichler
Assignee (at issue)
STEINBICHLER OPTOTECHNIK GMBH
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.