Granted Patent
Utility
US 5,246,597 · App. 07/795,578
Method of treating a spent caustic stream from a sour water stripper to reduce the sulfide content thereof
Inventors:
Dale A. Jenson, Anne Z. Jezak, Albert O. Massey
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Nov 21, 1991
Inventors
Dale A. Jenson
Anne Z. Jezak
Albert O. Massey
Assignee (at issue)
Ashland Oil, 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.