Granted Patent
Utility
US 6,187,918 · App. 09/523,046
Catalysts for asymmetric addition of organozinc reagents to aldehydes and method for preparation
Inventor:
William A. Nugent
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Mar 10, 2000
Inventor
William A. Nugent
Assignee (at issue)
Dupont Pharmaceuticals
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.