ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,176, issued on Nov. 25, was assigned to Shangjia (Shenzhen) Technology Co. Ltd. (Shenzhen, China).
"Multifunctional electric brush head" was invented by Wenjuan Jiang (Dazhou, China) and Jiawen Mao (Chengdu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multifunctional electric brush head is provided, which includes a control part, an execution part, a fixing component, and a work brush head; the control part rotates relativity to the execution part, the execution part rotates itself; thus, a wide clean range can be achieved. Different work brush heads can be replaced as needed to achieve a better clean result and work brush heads belonging...