Granted Patent
Utility
US 6,350,411 · App. 09/046,341
Microporous hollow fiber blood oxygenator
Inventors:
Kwantai Cho, Clifton Delozier, Robert English Johnston
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Mar 23, 1998
Inventors
Kwantai Cho
Clifton Delozier
Robert English Johnston
Assignee (at issue)
Celgard, LLC
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.