Granted Patent
Utility
US 5,958,356 · App. 08/964,783
Method for removal of moisture from gaseous HCl
Inventors:
Chun Christine Dong, Thomas Hsiao-Ling Hsiung, Timothy Christopher Golden
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Nov 5, 1997
Inventors
Chun Christine Dong
Thomas Hsiao-Ling Hsiung
Timothy Christopher Golden
Assignee (at issue)
Air Products and Chemicals, Inc.
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.