Granted Patent
Utility
US 6,617,480 · App. 09/767,684
Molecular weight-enlarged ligands for asymmetric, homogeneously soluble hydrogenation catalysts, process for the production thereof and use
Inventors:
Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Jan 24, 2001
Inventors
Hans-Peter Krimmer
Jens Woeltinger
Olaf Burkhardt
Ingo Klement
Hans Henniges
Karlheinz Drauz
Andreas Bommarius
Jean-Louis Philippe
Andreas Karau
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.