ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,225,881, issued on Feb. 18.
"Dog training and bark control device" was invented by Wenjing Feng (Guangdong, China) and Junyong Zhang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a dog training and bark control device and a dog training and bark control system, being capable of being switched among three modes: a dog training mode, a bark control mode, and a dog training and bark control mode, allowing a user to select an appropriate mode of the dog training and bark control device according to an actual need of a pet dog in different situations, thereby more flexibly responding to different training and behavior managem...