Granted Patent
Utility
US 6,493,570 · App. 09/184,388
Method for improved imaging and photodynamic therapy
Inventors:
H. Craig Dees, Timothy C. Scott
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Nov 2, 1998
Inventors
H. Craig Dees
Timothy C. Scott
Assignee (at issue)
Photogen, Inc.
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.