US 12,138,357 B2
Ultraviolet disinfection device and method
Brian Clark, Chicago, IL (US); Andrea Lee Clark, Chicago, IL (US); and Daniel Lawrence Clark, Hermosa Beach, CA (US)
Assigned to Humn, Inc., Chicago, IL (US)
Filed by Humn, Inc., Chicago, IL (US)
Filed on Mar. 26, 2024, as Appl. No. 18/617,229.
Application 18/617,229 is a continuation of application No. 18/045,686, filed on Oct. 11, 2022.
Claims priority of provisional application 63/232,292, filed on Aug. 12, 2021.
Prior Publication US 2024/0252700 A1, Aug. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61L 2/10 (2006.01); A61L 2/24 (2006.01)
CPC A61L 2/10 (2013.01) [A61L 2/24 (2013.01); A61L 2202/11 (2013.01); A61L 2202/122 (2013.01); A61L 2202/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A far-ultraviolet (far-UVC) disinfection device comprising:
a housing;
a light source positioned within the housing and configured to emit a far-UVC light having an output wavelength of between about 206 nanometers to about 230 nanometers;
one or more subject detection sensors positioned within the housing and configured to detect the presence of one or more subjects, the one or more subjects consisting of one or more of human beings, one or more domesticated animals, and one or more farm animals or a combination thereof; and
a controller positioned within the housing and in communication with the light source and the one or more subject detection sensors, the controller configured to:
receive detection data from the one or more subject detection sensors;
determine, based on the received detection data, whether one or more subjects are within a range of the far-UVC light emitted by the light source;
in response to determining that the one or more subject detection sensors detect the presence of the one or more subjects within the range of the far-UVC light emitted by the light source for a predetermined amount of exposure time, cause the light source to cease emitting the far-UVC light;
in response to determining that no subject of the one or more subjects is within the range of the far-UVC light emitted by the light source for the predetermined amount of exposure time, cause the light source to emit the far-UVC light; and
determine an effective disinfection rate based on an amount of time that the light source has been emitting the far-UVC light.