Granted Patent
Utility
US 6,096,856 · App. 08/983,626
Polymer electrolytes and process for their production
Inventors:
Freddy Helmer-Metzmann, Andreas Schleicher, Arnold Schneller, Helmut Witteler
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Jun 24, 1998
Inventors
Freddy Helmer-Metzmann
Andreas Schleicher
Arnold Schneller
Helmut Witteler
Assignee (at issue)
Hoechst Research & Technology Deutschland GmbH & Co. KG
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.