ALEXANDRIA, Va., March 31 -- United States Patent no. 12,591,269, issued on March 31, was assigned to VIVO MOBILE COMMUNICATION Co. LTD. (Guangdong, China).

"Electronic device" was invented by Wenbin Ouyang (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic device is disclosed. The electronic device includes a first housing, a second housing, a screen assembly, a shaft assembly, and a transmission member. The first housing and the second housing are in rotational fit with each other through the shaft assembly. The transmission member sleeves on the shaft assembly. The transmission member is capable of moving in an axial direction of the shaft assembly. The first housing is provide...