ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,939, issued on April 14, was assigned to Microchip Technology Inc. (Chandler, Ariz.).
"Self-cleaning safety system" was invented by Patrick McFarland (Gilbert, Ariz.) and Arthur Eck (Gilbert, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes a control circuit to connect to an audio device of a safety system. The safety system is to detect a hazardous condition. The audio device is to alert a user of the hazardous condition. The safety system is to include a sensor to sense the hazardous condition. The apparatus includes an interface to connect the control circuit to the audio device. The control circuit is to determine whet...