Granted Patent
Utility
US 5,175,306 · App. 07/562,402
Process for the resolution of racemates of optically active bicyclic imino-.alpha.-carboxylic esters
Inventors:
Rolf Geiger, Volker Teetz, Dietrich Langner
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Aug 3, 1990
Inventors
Rolf Geiger
Volker Teetz
Dietrich Langner
Assignee (at issue)
Hoechst GmbH
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.