Granted Patent
Utility
US 5,849,924 · App. 08/896,275
Highly selective process for the preparation of enantiomerically pure phenyl-substituted 1,4-dihydropyridine-3,5-dicarboxylic acid derivatives
Inventors:
Joachim Mittendorf, Peter Fey, Bodo Junge, Johannes Kaulen, Kai van Laak, Heinrich Meier, Rudolf Schohe-Loop
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Jul 16, 1997
Inventors
Joachim Mittendorf
Peter Fey
Bodo Junge
Johannes Kaulen
Kai van Laak
Heinrich Meier
Rudolf Schohe-Loop
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.