Granted Patent
Utility
US 6,528,590 · App. 09/868,609
Aqueous copolymer dispersion, its method of production and its use
Inventors:
Dierk Beyer, Volker Renisch, Rolf Kuropka, Susana Maria De Almeida Carvalho
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Oct 5, 2001
Inventors
Dierk Beyer
Volker Renisch
Rolf Kuropka
Susana Maria De Almeida Carvalho
Assignee (at issue)
Clariant Corporation
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.