Granted Patent
Utility
US 4,647,367 · App. 06/812,532
Antifouling agents for prevention of unwanted coke formation in reactors
Inventors:
Peter Urban, Frank Stolfa
Patented Case
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Granted: Mar 3, 1987
Filed: Dec 23, 1985
Inventors
Peter Urban
Frank Stolfa
Assignee (at issue)
UOP LLC
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.