Granted Patent
Utility
US 6,217,541 · App. 09/233,567
Blood pump using cross-flow principles
Inventor:
Long Yu
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Jan 19, 1999
Inventor
Long Yu
Assignee (at issue)
Kriton Medical, 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.