Granted Patent
Utility
US 5,510,503 · App. 08/300,507
Bisphosphines for asymmetric hydrogenation catalysts
Inventors:
Christian Laue, Georg Schroder, Dieter Arlt, Rolf Grosser
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Sep 2, 1994
Inventors
Christian Laue
Georg Schroder
Dieter Arlt
Rolf Grosser
Assignee (at issue)
Bayer Aktiengesellschaft
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.