Granted Patent
Utility
US 6,428,685 · App. 09/864,909
Desulfurization and novel sorbents for same
Inventor:
Gyanesh P. Khare
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: May 24, 2001
Inventor
Gyanesh P. Khare
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.