Granted Patent
Utility
US 6,284,925 · App. 09/335,894
Use of ferrocenyl ligands for catalytic, enantioselective hydrogenation
Inventors:
Paul Knochel, Juan Jose Almena Perea, Karlheinz Drauz, Ingo Klement
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jun 18, 1999
Inventors
Paul Knochel
Juan Jose Almena Perea
Karlheinz Drauz
Ingo Klement
Assignee (at issue)
Degussa-Huels 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.