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:
Oct. 08, 2002
Filed:
Jan. 27, 2000
Joseph Chaiken, Fayetteville, NY (US);
Robert R. Birge, Syracuse, NY (US);
Syracuse University, Syracuse, NY (US);
Abstract
Tungsten and molybdenum oxide, and oxides of other metals and bronzes derived from such oxides, constitute a broad class of materials having applications as photochromic sunblock/cosmetics. These materials are well known in the prior art in the context of photochromic optical data storage media and they offer an excellent match with the very properties needed for cosmetic applications. The invention relates to the adaptation of the class of tungsten and molybdenum oxide photochromics to sunblocking/dosimetry, energy storage, and cosmetic coloration. In addition, certain naturally occurring proteins which exhibit the necessary photochromism can also be used alone for the same purpose or with the oxide systems described above.