Granted Patent
Utility
US 6,090,891 · App. 09/075,639
Carboxyl-containing polymer(s) with (2-oxo-1,3-dioxolan-4-yl)methyl groups-containing compound(s)
Inventors:
Isabelle Frischinger, Jacques-Alain Cotting, Jurgen Finter, Jacques Fran.cedilla.ois
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: May 11, 1998
Inventors
Isabelle Frischinger
Jacques-Alain Cotting
Jurgen Finter
Jacques Fran.cedilla.ois
Assignee (at issue)
Ciba Specialty Chemicals 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.