Granted Patent
Utility
US 5,522,982 · App. 08/411,475
Process for preparing 4,4'-dimethyl-1,1'-binaphthyl
Inventors:
Stephan Brietzke, Hans Millauer
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Mar 28, 1995
Inventors
Stephan Brietzke
Hans Millauer
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.