Granted Patent
Utility
US 6,534,041 · App. 09/403,418
Acid-labile and enzymatically divisible dye compounds for diagnosis with near infrared light and for therapy
Inventors:
Kai Licha, Bjorn Riefke, Wolfhard Semmler, Wolfgang Wrasidlo
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: May 1, 2000
Inventors
Kai Licha
Bjorn Riefke
Wolfhard Semmler
Wolfgang Wrasidlo
Assignee (at issue)
Institute for Diagnostic Research GmbH of the Free University of Berlin
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.