ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,140, issued on May 6, was assigned to Calson Investment Ltd. (North Point, Hong Kong).

"Integrated fabric based power-generating insole and method of manufacturing the same" was invented by Chou Har Wu (North Point, Hong Kong), Bingang Xu (Kowloon, Hong Kong), Meiqi Li (Kowloon, Hong Kong), Yuanyuan Gao (Kowloon, Hong Kong) and Yujue Yang (Kowloon, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a power-generating insole based on fabric integration, which comprises a power-generating insole body, a detachable outer layer and an electronic module; The power-generating insole comprises a first friction componen...