Granted Patent
Utility
US 5,670,029 · App. 08/724,651
Process for the separation of a mixture of benzyl chloride, benzyl alcohol, dibenzyl ether and aqueous hydrochloric acid
Inventors:
Hans-Josef Buysch, Ursula Jansen, Pieter Ooms, Erhard-Gunther Hoffmann, Bernd-Ulrich Schenke
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Oct 3, 1996
Inventors
Hans-Josef Buysch
Ursula Jansen
Pieter Ooms
Erhard-Gunther Hoffmann
Bernd-Ulrich Schenke
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.