Granted Patent
Utility
US 4,684,530 · App. 06/784,010
Adsorption of proteins from fluids
Inventors:
William A. Welsh, Yves Parent, Stanley A. Mertz
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Oct 4, 1985
Inventors
William A. Welsh
Yves Parent
Stanley A. Mertz
Assignee (at issue)
W. R. Grace & Co.
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.