Granted Patent
Utility
US 5,523,501 · App. 08/362,331
Catalytic hydrogenolysis
Inventors:
Carl S. Kellner, V. N. Mallikarjuna Rao, Allen Capron Sievert
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Dec 22, 1994
Inventors
Carl S. Kellner
V. N. Mallikarjuna Rao
Allen Capron Sievert
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.