ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,166, issued on Feb. 25, was assigned to King Technology Inc. (Minnetonka, Minn.).
"Dispensing cartridge alert" was invented by Eric Barton (Eden Prairie, Minn.), Jeffrey D. Johnson (Edina, Minn.) and Darrin M Swagel (Minnetonka, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge dispenser having a rotatable sleeve for alerting a person as to when a cartridge dispenser should be replaced based on when the cartridge dispenser is placed in a body of water with the cartridge replacement date carried forward on the cartridge dispenser."
The patent was filed on Sept. 9, 2022, under Application No. 17/941,495.
*For further information, incl...