Granted Patent
Utility
US 6,319,465 · App. 09/325,219
Reversing flow blood processing system having reduced clotting potential
Inventors:
William J. Schnell, David S. Utterberg, Ting Ting Yu
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Jun 3, 1999
Inventors
William J. Schnell
David S. Utterberg
Ting Ting Yu
Assignee (at issue)
DSU Medical Corp.
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.