Granted Patent
Utility
US 5,877,382 · App. 08/442,937
Alkylation catalyst regeneration
Inventor:
Alan D. Eastman
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: May 17, 1995
Inventor
Alan D. Eastman
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.