Granted Patent
Utility
US 4,764,628 · App. 07/095,973
Asymmetric epoxidation of allylic alcohols
Inventor:
Wilfred P. Shum
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Sep 14, 1987
Inventor
Wilfred P. Shum
Assignee (at issue)
Arco Chemical 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.