US 12,251,481 B2
Photocatalytic fluid filtration system and method
Jaspreet S. Dhau, San Francisco, CA (US); Dilip N. Goswami, San Francisco, CA (US); Philip Myers, San Francisco, CA (US); David Sanabria, San Francisco, CA (US); and Rick C. Rasor, San Francisco, CA (US)
Assigned to Molekule, Inc., San Francisco, CA (US)
Filed by Molekule Group, Inc., San Francisco, CA (US)
Filed on Jun. 7, 2021, as Appl. No. 17/340,793.
Claims priority of provisional application 63/035,637, filed on Jun. 5, 2020.
Prior Publication US 2021/0379220 A1, Dec. 9, 2021
Int. Cl. A61L 2/10 (2006.01); A61L 9/20 (2006.01); B01D 39/10 (2006.01); B82Y 30/00 (2011.01)
CPC A61L 2/10 (2013.01) [A61L 9/205 (2013.01); B01D 39/10 (2013.01); A61L 2202/11 (2013.01); A61L 2209/14 (2013.01); B01D 2201/0415 (2013.01); B01D 2201/12 (2013.01); B82Y 30/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An air purification system comprising:
a housing defining an inlet, an outlet, and an air flow path between the inlet and the outlet;
an impeller configured to urge air along the air flow path;
a pleated filter intersecting the air flow path, the pleated filter comprising a substrate with photocatalytic material disposed on a first surface of the substrate and a metal mesh electrically connected to the photocatalytic material; and
a light source member comprising:
a polygonal prismatic support;
a set of ultraviolet light emitting diodes (UVLEDs) on each rectangular face of the polygonal prismatic support, wherein the sets of UVLEDs are directed toward the first surface of the substrate, wherein the sets of UVLEDs are approximately equidistantly spaced along a longitudinal axis between a first and second base of the polygonal prismatic support; and
a UV transparent material loaded with UV scattering nanoparticles, wherein the UV transparent material is arranged between the UVLEDs and the pleated filter, wherein the UV scattering nanoparticles are configured to scatter light emitted by the UVLEDs.