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. 06, 2026
Filed:
Oct. 13, 2023
Singletto Inc., Seattle, WA (US);
James Chongchu Chen, Clyde Hill, WA (US);
Singletto Inc., Seattle, WA (US);
Abstract
An apparatus and method to actively purify and sanitize air. A flow of air is directed over a surface that includes a photosensitizer formulation which is activated by light to emit singlet oxygen that inactivates and/or kills pathogens in the air flow. A fan device is employed to generate and direct the flow of air. The fan device includes the photosensitizer formulation disposed on fan blades, rotatable fan shafts, and interior surfaces of a housing. The flow of air is emitted towards an exterior surface. Activation of the photosensitizer by light emits singlet oxygen in the flow of air to inactivate pathogens disposed on the interior surface of the housing and the exterior surface.