Granted Patent
Utility
US 6,506,806 · App. 09/855,349
Reduction of surface tension
Inventors:
Charles Kenneth Taylor, Kai-Volker Schubert, Richard David Koehler
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: May 15, 2001
Inventors
Charles Kenneth Taylor
Kai-Volker Schubert
Richard David Koehler
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.