Granted Patent
Utility
US 6,548,039 · App. 09/503,636
Processing aqueous titanium solutions to titanium dioxide pigment
Inventors:
Willem P. C. Duyvesteyn, Timothy Spitler, Bruce J. Sabacky, Andrew Vince, Jan Prochazka
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Feb 14, 2000
Inventors
Willem P. C. Duyvesteyn
Timothy Spitler
Bruce J. Sabacky
Andrew Vince
Jan Prochazka
Assignee (at issue)
Altair Nanomaterials, 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.