Granted Patent
Utility
US 5,734,029 · App. 08/475,474
Preparation of improved alkypolygloycoside surfactant mixtures
Inventors:
Harald P. Wulff, Paul A. Siracusa, Patricia E. Bator, Barry A. Salka, Michael W. Counts, Robert A. Aleksejczyk
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Jun 7, 1995
Inventors
Harald P. Wulff
Paul A. Siracusa
Patricia E. Bator
Barry A. Salka
Michael W. Counts
Robert A. Aleksejczyk
Assignee (at issue)
Henkel Limited
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.