Granted Patent
Utility
US 6,812,293 · App. 09/830,974
Redispersible material, process for producing and using the same, and aqueous system containing this redispersible material
Inventor:
Robert Koelliker
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Feb 7, 2002
Inventor
Robert Koelliker
Assignee (at issue)
National Starch and Chemical Investment Holding Copporation
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.