Granted Patent
Utility
US 6,780,813 · App. 10/148,555
Process for producing DMC catalysts
Inventors:
Jörg Hofmann, Bernd Klinksiek, Stephan Ehlers, Thorsten Fechtel, Franz Föhles, Pieter Ooms
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: May 30, 2002
Inventors
Jörg Hofmann
Bernd Klinksiek
Stephan Ehlers
Thorsten Fechtel
Franz Föhles
Pieter Ooms
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.