Granted Patent
Utility
US 5,725,815 · App. 08/525,520
Foam control agents for the food, paint and paper industries
Inventors:
Horst-Werner Wollenweber, Thomas Moeller, Hans-Juergen Sladek, Heinz-Guenther Schulte, Wolfgang Gress, Ulrich Eicken, Herbert Fischer, Christian De Haut
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Nov 9, 1995
Inventors
Horst-Werner Wollenweber
Thomas Moeller
Hans-Juergen Sladek
Heinz-Guenther Schulte
Wolfgang Gress
Ulrich Eicken
Herbert Fischer
Christian De Haut
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.