Granted Patent
Utility
US 5,854,201 · App. 08/817,584
Textile softeners concentrates based on pentaerythritol or esters thereof containing quaternary and nonionic emulsifiers
Inventors:
Ansgar Behler, Guenther Uphues, Bernd Wahle, Peter Waltenberger, Almud Folge
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Jul 10, 1997
Inventors
Ansgar Behler
Guenther Uphues
Bernd Wahle
Peter Waltenberger
Almud Folge
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.