Granted Patent
Utility
US 5,341,313 · App. 07/924,138
Catalyst life prediction in hydrodesulfurization
Inventors:
Stephen L. Parrott, Raul Adarme, Fan-Nan Lin, Edwin P. Sasscer
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Aug 3, 1992
Inventors
Stephen L. Parrott
Raul Adarme
Fan-Nan Lin
Edwin P. Sasscer
Assignee (at issue)
Phillips Petroleum Company
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.