ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,747, issued on June 30, was assigned to Dazhong Liu (Beijing).
"Trampoline and sports device" was invented by Dazhong Liu (Beijing) and Ziyang Liu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A trampoline includes an elastic plate and a supporting unit, wherein the elastic plate includes a first end and a second end, and a portion, located between the first end and the second end, of the elastic plate is an elastic energy accumulator; the supporting unit includes supporting bodies arranged at the first end and the second end of the elastic plate, and the supporting bodies are capable of supporting the elastic plate and tensioning the firs...