ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,569, issued on July 28.
"Q-leash systems" was invented by George H. Butler III (Mesa, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to providing a system which allows a user to attach, or detach, a leash to, or from, a pet's collar using only one hand, without the need to remove mittens or gloves in colder climates, without the need to touch or grasp a hot metal "D-ring" or other method of attachment on a collar in hot climates, but simply attaching the leash directly to the collar itself."
The patent was filed on Dec. 20, 2017, under Application No. 15/849,549.
*For further information, including images, chart...