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:
Aug. 26, 2003
Filed:
Dec. 13, 2002
Applicant:
Inventor:
Jamie Knapp, Mendon, MA (US);
Assignee:
Thermo Corion Corporation, Franklin, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/06 ;
U.S. Cl.
CPC ...
F21V 9/06 ;
Abstract
A novel, cost effective optical filter is employed for photosensors used in ultraviolet-based water purification systems. Optically tuned to specifically eliminate the non-germicidal wavelength polychromatic emissions from mercury lamps, this unique optical filter approach significantly reduces the cost in manufacturing reliable water purification systems employing ultraviolet light.