Granted Patent
Utility
US 4,502,949 · App. 06/580,490
Catalytic oxidation of mercaptan in petroleum distillate
Inventors:
Robert R. Frame, Russell W. Johnson, Bruce E. Staehle
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: Feb 15, 1984
Inventors
Robert R. Frame
Russell W. Johnson
Bruce E. Staehle
Assignee (at issue)
UOP LLC
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.