ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,872, issued on June 17, was assigned to Lumenlabs LLC (Poway, Calif.).

"Smart UV C fixture with IoT features" was invented by Kevin C. Baxter (Tulsa, Okla.), Scott R. Gant (Poway, Calif.) and Russell D. Schroader (Round Rock, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An excimer bulb assembly including an excimer bulb and a pass filter such that the excimer bulb assembly does not emit substantial UV radiation in wavelengths longer than 231 nm, 232 nm, 233 nm, 234 nm or 235 nm. The wavelengths are measured at an incident angle of zero (0) degrees to the filter plane. The pass filter is preferably constructed of a plurality of layers of hafn...