Granted Patent
Utility
US 6,201,157 · App. 09/480,206
Method for production of phenol and acetone by decomposition of cumene hydroperoxide
Inventor:
Scott R. Keenan
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jan 10, 2000
Inventor
Scott R. Keenan
Assignee (at issue)
Sunoco, Inc. (R&M)
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.