ALEXANDRIA, Va., June 10 -- United States Patent no. 12,295,075, issued on May 6, was assigned to Sauna Works Inc. (Berkeley, Calif.).

"Narrowband ultraviolet sauna" was invented by Andrew Kaps (Berkeley, Calif.) and Raleigh C. Duncan (Berkeley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, devices, and methods are disclosed herein for ultraviolet saunas. Systems include a plurality of walls of an enclosure, the enclosure being a sauna enclosure configured to accommodate a user. The systems further include a plurality of heating elements coupled to the plurality of walls, a plurality of emissive elements configured to generate ultraviolet (UV) light, and a controller coupled to the plurality...