Granted Patent
Utility
US 6,398,949 · App. 09/704,813
Sapo-supported hydrodesulfurization catalyst and processes therefor and therewith
Inventors:
An-hsiang Wu, Charles A. Drake, Joseph E. Bares
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Nov 2, 2000
Inventors
An-hsiang Wu
Charles A. Drake
Joseph E. Bares
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.