Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Reexamination Certificate
2011-06-07
2011-06-07
Landau, Sharmila G. (Department: 1611)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
C424S615000, C424S617000, C424S683000
Reexamination Certificate
active
07955610
ABSTRACT:
The present invention provides an antimicrobial composition for topical application, preferably for treating acne, and a method for using the composition. The composition comprises a photocatalyst mixture comprising a photocatalyst, such as titanium dioxide, and sodium perborate, magnesium silicate, and citric acid. The photocatalyst mixture is in an amount effective as an antimicrobial under visible light. The method comprises applying the composition to a target area of the skin and exposing the area to visible light.
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Kameyama,Tetsuya, et al., “Robust Science & Technology for Safe and Secure Life Space—Photocatalyst—,” Public Relations Department, National Institute of Advanced Industrial Science and Technology (AIST), 8 pages. Retrieved at: http://www.aist.go.jp/aist—e/research—results/publications/pamphlet/today/photocatalyst—e.pdf. Metadata within the PDF file indicates “Created: Aug. 27, 2003” and “Modified: May 10, 2006.” Screen capture of metadata screen attached as p. 9.
Rungsardthong Uracha
Saraya ML Sumarn
Tanthapanichakoon Wiwut
Thaitae Wasana
Baker & Daniels LLP
Klinkel Kortney L
Landau Sharmila G.
National Science and Technology Development Agency
Nonami Science (Thailand) Co., Ltd.
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