Granted Patent
Utility
US 6,229,042 · App. 09/443,049
Process for the preparation of enantiomerically pure 3-hydroxyoctanedioic acid diesters by asymmetric catalytic hydrogenation
Inventors:
Rainer Gewald, Gunter Laban
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Nov 18, 1999
Inventors
Rainer Gewald
Gunter Laban
Assignee (at issue)
Asta Medica 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.