Granted Patent
Utility
US 5,808,163 · App. 08/680,479
Chiral tertiary phosphines and process for their preparation
Inventors:
Hans Millauer, Peter Brungs
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Jul 17, 1996
Inventors
Hans Millauer
Peter Brungs
Assignee (at issue)
Aventis Research & Technologies GmbH & Co.
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.