Granted Patent
Utility
US 6,596,810 · App. 08/967,367
Blends of cycloolefin and core/shell polymers
Inventors:
Wilfried Hatke, Frank Osan, Otto Herrmann-Schonherr, Vincent J. Sullivan, Thomas Weller
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Nov 10, 1997
Inventors
Wilfried Hatke
Frank Osan
Otto Herrmann-Schonherr
Vincent J. Sullivan
Thomas Weller
Assignees (at issue)
Mitsu Petrochemical Ind., Ltd.
Ticona LLC
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.