Granted Patent
Utility
US 6,153,639 · App. 09/313,106
Ethylene glycol esters as photoactive agents
Inventors:
Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth Waterfield, Ronald Erwin Boch
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: May 17, 1999
Inventors
Ethan Sternberg
David Dolphin
Julia G. Levy
Anna M. Richter
David W. C. Hunt
Ashok Jain
Elizabeth Waterfield
Ronald Erwin Boch
Assignees (at issue)
QLT PhotoTherapeutices Inc.
THE UNIVERSITY OF BRITISH COLUMBIA
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.