Granted Patent
Utility
US 5,773,636 · App. 08/640,921
Process for the production of fatty acid lower alkyl esters
Inventors:
Guenther Demmering, Christian Pelzer, Lothar Friesenhagen
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Aug 5, 1996
Inventors
Guenther Demmering
Christian Pelzer
Lothar Friesenhagen
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.