Granted Patent
Utility
US 6,774,162 · App. 09/913,613
Thermoplastic vulcanizate and its method of production
Inventors:
Jörg Vortkort, Friedrich Wilhelm Gräbner, Andre Bontemps, Stefan Volkmann
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Aug 15, 2001
Inventors
Jörg Vortkort
Friedrich Wilhelm Gräbner
Andre Bontemps
Stefan Volkmann
Assignee (at issue)
PolyOne Corporation
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.