Granted Patent
Utility
US 5,374,716 · App. 07/517,955
Process for the production of surface active alkyl glycosides
Inventors:
Manfred Biermann, Karlheinz Hill, Willi Wuest, Rainer Eskuchen, Josef Wollmann, Andreas Bruns, Guenter Hellmann, Karl-Heinz Ott, Walter Winkle, Klaus Wollmann
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Apr 27, 1990
Inventors
Manfred Biermann
Karlheinz Hill
Willi Wuest
Rainer Eskuchen
Josef Wollmann
Andreas Bruns
Guenter Hellmann
Karl-Heinz Ott
Walter Winkle
Klaus Wollmann
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.