Granted Patent
Utility
US 6,544,492 · App. 09/744,110
Regeneration method for process which removes hydrogen sulfide from gas streams
Inventor:
David W. DeBerry
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Jan 18, 2001
Inventor
David W. DeBerry
Assignee (at issue)
CrystaTech, 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.