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:
Jun. 07, 2005
Filed:
Nov. 15, 2002
Gary Carmignani, Occidental, CA (US);
Lee Frederick, Santa Rosa, CA (US);
Steve Sitkiewitz, Sebastopol, CA (US);
Gary Carmignani, Occidental, CA (US);
Lee Frederick, Santa Rosa, CA (US);
Steve Sitkiewitz, Sebastopol, CA (US);
Titan Technologies, Sebastopol, CA (US);
Abstract
An apparatus and method for the photocatalytic conversion of contaminants in a fluid stream. Fluid is directed through a semitransparent packed bed or an open cell, three dimensionally reticulated, fluid permeable, semiconductor unit. Within the unit, a semiconductor, when exposed to a photoactivating light source, converts the contaminants through a photocatalytic reaction. Both the substrate and the semiconductor photocatalyst are semitransparent to the activating light to allow penetration of light into the unit, thereby distributing the light, increasing the active specific surface area, and improving the net conversion performance of the unit.