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. 12, 1994
Filed:
Mar. 04, 1992
Farhang F Shadman, Tucson, AZ (US);
Robert A Governal, Tucson, AZ (US);
Arizona Board of Reagents Acting on Behalf of University of Arizona, Tucson, AZ (US);
Abstract
An ultrapure water treatment system is provided by the present invention. e system comprises a housing, a water supply means including a water inlet and a water outlet communicating with the housing and defining a path of travel of the water from said inlet to said outlet, irradiation means for irradiating water with 185 nm UV light positioned within the housing, and a catalytic filter positioned in the path of travel of the water. The catalytic filter comprises a non-polymeric porous material having a photoactive catalyst thereon. Exemplary photoactive catalysts include TiO.sub.2, ZnO, WO.sub.3, SnO.sub.2, CU.sub.2 O, and CdSe.