Granted Patent
Utility
US 6,582,496 · App. 09/889,960
Hollow fiber membrane contactor
Inventors:
Kwok-Shun Cheng, Cha P. Doh
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Jul 24, 2001
Inventors
Kwok-Shun Cheng
Cha P. Doh
Assignee (at issue)
Mykrolis 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.