Granted Patent
Utility
US 6,197,849 · App. 09/248,649
Organophilic phyllosilicates
Inventors:
Carsten Zilg, Rolf Mulhaupt, Jurgen Finter
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Feb 11, 1999
Inventors
Carsten Zilg
Rolf Mulhaupt
Jurgen Finter
Assignee (at issue)
Vantico Inc.
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.