Granted Patent
Utility
US 5,284,584 · App. 07/999,054
Hollow fiber membrane fabric - containing cartridges and modules having solvent-resistant thermoplastic tube sheets, and methods for making the same
Inventors:
Xiaoyan Huang, J. Clift Delozier, Ravi Prasad, Charles J. Runkle, Harry F. Shuey
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Dec 31, 1992
Inventors
Xiaoyan Huang
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.