Granted Patent
Utility
US 5,874,647 · App. 08/700,142
Benzene hydroxylation catalyst stability by acid treatment
Inventors:
William D. McGhee, Patrick Notté
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Aug 20, 1996
Inventors
William D. McGhee
Patrick Notté
Assignee (at issue)
Soliton, 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.