US Patent Issued to NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CHINESE ACADEMY OF SCIENCES on May 20 for "Light-concentrating anti-frost anti-heave heat gathering device and subgrade thereof" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,889, issued on May 20, was assigned to NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CHINESE ACADEMY OF SCIENCES (Gansu, China).

"Light-concentrating anti-frost anti-heave heat gathering device and subgrade thereof" was invented by Qihao Yu (Gansu, China), Zhenyu Zhang (Gansu, China) and Yanhui You (Gansu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a light-concentrating anti-frost anti-heave heat gathering device and subgrade thereof. The device comprises a light concentrator mounted outside a subgrade; and a heat gathering tube comprising a heat absorption section and a heat release section in communication,...