Granted Patent
Utility
US 6,695,906 · App. 09/833,881
Continuous processes for producing titanium dioxide pigments
Inventors:
Michael Hiew, Yarw-Nan Wang, Les Hamor, Brian Tear, Robert McIntyre
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Apr 12, 2001
Inventors
Michael Hiew
Yarw-Nan Wang
Les Hamor
Brian Tear
Robert McIntyre
Assignee (at issue)
Millennium Inorganic Chemicals, 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.