Granted Patent
Utility
US 4,879,418 · App. 07/226,768
Process for the preparation of aldehydes
Inventors:
Hanswilhelm Bach, Helmut Bahrmann, Boy Cornils, Wilhelm Gick, Volker Heim, Werner Konkol, Ernst Wiebus
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Aug 1, 1988
Inventors
Hanswilhelm Bach
Helmut Bahrmann
Boy Cornils
Wilhelm Gick
Volker Heim
Werner Konkol
Ernst Wiebus
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.