Granted Patent
Utility
US 5,451,703 · App. 08/255,550
Process for the preparation of biaryls
Inventors:
Thomas Schach, Theodor Papenfuhs, Joachim Hackenbruch
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: May 31, 1994
Inventors
Thomas Schach
Theodor Papenfuhs
Joachim Hackenbruch
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.