Granted Patent
Utility
US 5,510,554 · App. 08/337,983
Process for preparing 1,1'-binaphthyls
Inventors:
Dieter Regnat, Hans-Jerg Kleiner
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Nov 14, 1994
Inventors
Dieter Regnat
Hans-Jerg Kleiner
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.