Granted Patent
Utility
US 5,187,010 · App. 07/618,791
Membrane having high affinity for low density lipoprotein-cholesterol from whole blood
Inventors:
Marc E. Parham, Richard L. Duffy
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Nov 27, 1990
Inventors
Marc E. Parham
Richard L. Duffy
Assignee (at issue)
W.R. Grace & Co. Conn.
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.