Granted Patent
Utility
US 6,254,766 · App. 09/382,935
Desulfurization and novel sorbents for same
Inventors:
Edward L. Sughrue, II, Gyanesh P. Khare, Brent J. Bertus, Marvin M. Johnson
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Aug 25, 1999
Inventors
Edward L. Sughrue, II
Gyanesh P. Khare
Brent J. Bertus
Marvin M. Johnson
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.