Granted Patent
Utility
US 4,670,131 · App. 06/818,583
Method for controlling fouling of hydrocarbon compositions containing olefinic compounds
Inventor:
Thomas M. Ferrell
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Jan 13, 1986
Inventor
Thomas M. Ferrell
Assignee (at issue)
Exxon Chemical Patents, Inc.
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.