ALEXANDRIA, Va., April 9 -- United States Patent no. 12,268,189, issued on April 8, was assigned to Shenzhen Wellturn Technology Co. Ltd. (Shenzhen, China).

"Electric fence device and system" was invented by Xingsheng Luo (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic fence device includes: a transmitter, arranged to preset a fence range or a restricted range; and at least one receiver, configured to be worn on a pet. The transmitter comprises a locating module; each of the at least one receiver comprises a tag module; the locating module and the tag module are configured to exchange measurement signals therebetween to monitor a location of the pet in real time. The transmitte...