Granted Patent
Utility
US 5,186,832 · App. 07/917,690
Spiral-wound hollow fiber membrane fabric cartridges and modules having integral turbulence promoters
Inventors:
Anthony W. Mancusi, III, J. Clift Delozier, Ravi Prasad, Charles J. Runkle, Harry F. Shuey
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Jul 20, 1992
Inventors
Anthony W. Mancusi, III
J. Clift Delozier
Ravi Prasad
Charles J. Runkle
Harry F. Shuey
Assignee (at issue)
Hoechst Celanese Corporation
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.