Granted Patent
Utility
US 5,403,750 · App. 07/682,502
Biocompatible, low protein adsorption affinity matrix
Inventors:
James A. Braatz, Aaron H. Heifetz
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Apr 8, 1991
Inventors
James A. Braatz
Aaron H. Heifetz
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.