ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,225, issued on Oct. 14, was assigned to Shenzhen Xinzhengyu Technology Co. Ltd (Shenzhen, China).
"External screen device for smartphone" was invented by Lingzhong Zhao (Shenzhen, China), Junhua Wu (Shenzhen, China) and Zhengping Zhao (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure discloses an external screen device for a smartphone, including a body. The body is provided with first, second and third connection interfaces. Through the first connection interface and a data line, the external screen device performs data signal transmission with the smartphone to receive data signals of the smartphone in real time, there...