Granted Patent
Utility
US 6,616,841 · App. 09/886,653
Hollow fiber membrane contactor
Inventors:
Kwantai Cho, Clifton Delozier, Linus I. Holstein, R. Pittman, Charles J. Runkle, Amitava Sengupta
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Jun 21, 2001
Inventors
Kwantai Cho
Clifton Delozier
Linus I. Holstein
R. Pittman
Charles J. Runkle
Amitava Sengupta
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.