ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,718, issued on Nov. 18, was assigned to CCCC SECOND HIGHWAY CONSULTANTS Co. LTD. (Wuhan, China).

"Intelligent rainwater regulation and storage system based on mid-layer water intake" was invented by Tianhui Xu (Wuhan, China), Chujiang Chen (Wuhan, China), Haiyan Zhou (Wuhan, China), Yanbin Ruan (Wuhan, China) and Xing Liu (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An intelligent rainwater regulation and storage system based on mid-layer water intake is provided. The system includes a vertical rod and a limiting sleeve fixedly disposed at a bottom of a rainwater regulation and storage pool, a sliding sleeve and a limiting rod are di...