Granted Patent
Utility
US 6,037,500 · App. 08/876,120
Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
Inventor:
Xumu Zhang
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Jun 13, 1997
Inventor
Xumu Zhang
Assignee (at issue)
THE PENN STATE RESEARCH FOUNDATION
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.