ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,382, issued on Jan. 13, was assigned to Respired Ltd. (London).
"Air cleaning device" was invented by Siamak Ardkapan (Copenhagen, Denmark) and Matthew Johnson (Copenhagen, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an air cleaning device, in particular, the invention relates to a supplementary air cleaning device which boosts delivery of clean air using energy from the existing air flow and from thermal updrafts to drive air through a filter. Moreover, the device is designed to create a localised extraction zone from just above the breathing zone of standing passengers. The device is mounted externally to an exi...