Granted Patent
Utility
US 5,156,840 · App. 07/327,881
Amine-containing porphyrin derivatives
Inventors:
John W. F. Goers, Hurley D. King, Chyi Lee, Daniel J. Coughlin, Vernon L. Alvarez, John D. Rodwell, Thomas J. McKearn
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Mar 20, 1989
Inventors
John W. F. Goers
Hurley D. King
Chyi Lee
Daniel J. Coughlin
Vernon L. Alvarez
John D. Rodwell
Thomas J. McKearn
Assignee (at issue)
CYTOGEN, 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.