ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,922, issued on May 6.
"Integrated control type hollow curtain" was invented by Yan Chen (Guangdong, China), Yangli Deng (Guangdong, China) and Weipin Song (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an integrated control type hollow curtain, including a front glass panel, a rear glass panel and a curtain body frame. The front glass panel and the rear glass panel are hermetically connected to front and rear surfaces of the curtain body frame to form a hollow curtain with a sealed cavity. An electronic control system and a solar panel are arranged in the top of the sealed cavity. According to the p...