Granted Patent
Utility
US 6,797,784 · App. 09/831,097
Thermoplastic resins with a low proportion of coarse particles
Inventors:
Michael Zobel, Dieter Wittmann, Herbert Eichenauer, Alfred Eitel, Thomas Eckel, Bernd Keller, Hans-Bernhard Hauertmann, Dorothy Rose
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: May 3, 2001
Inventors
Michael Zobel
Dieter Wittmann
Herbert Eichenauer
Alfred Eitel
Thomas Eckel
Bernd Keller
Hans-Bernhard Hauertmann
Dorothy Rose
Assignee (at issue)
Bayer Aktiengesellschaft
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.