Granted Patent
Utility
US 5,683,916 · App. 08/465,479
Membrane affinity apparatus and purification methods related thereto
Inventors:
Randal A. Goffe, Stephen E. Zale, James L. O'Connor, Stephen B. Kessler
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Jun 5, 1995
Inventors
Randal A. Goffe
Stephen E. Zale
James L. O'Connor
Stephen B. Kessler
Assignee (at issue)
Hemasure, 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.