Granted Patent
Utility
US 5,886,217 · App. 08/974,802
Method of producing aryl-substituted, amino-acylated phosphonic-acid derivatives with the aid of metal complexes of chiral, amphiphilic ligands
Inventors:
Gunther Oehme, Ute Schmidt, Silke Ziegler, Ingrid Grassert, Christine Fischer
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Nov 20, 1997
Inventors
Gunther Oehme
Ute Schmidt
Silke Ziegler
Ingrid Grassert
Christine Fischer
Assignee (at issue)
Degussa AG
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.