The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2009
Filed:
Nov. 08, 2002
Applicants:
Claire Bygott, Grimsby, GB;
Michel Ries, Orly, FR;
Stephen P. Kinniard, Ellicott City, MD (US);
Inventors:
Assignee:
Millennium Inorganic Chemicals, Inc., Hunt Valley, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 23/047 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to photocatalytically active rutile titanium dioxide. The photocatalytically active rutile titanium dioxide of the present invention demonstrates enhanced activity in the visible light spectrum. It may be produced by neutralizing rutile seed to a higher pH than that at which it has traditionally been neutralized prior to washing and thermally treating the seed.