US Patent Issued to CCCC FIRST HIGHWAY CONSULTANTS on May 20 for "Method and system for controlling ventilation cooling type permafrost subgrade based on energy dynamic balance" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,339, issued on May 20, was assigned to CCCC FIRST HIGHWAY CONSULTANTS Co. LTD. (Shaanxi Province, China).

"Method and system for controlling ventilation cooling type permafrost subgrade based on energy dynamic balance" was invented by Yuanhong Dong (Shaanxi Province, China), Long Jin (Shaanxi Province, China), Jianbing Chen (Shaanxi Province, China), Liguo Zhao (Shaanxi Province, China), Huilong Zhao (Shaanxi Province, China), Hui Peng (Shaanxi Province, China), Kun Yuan (Shaanxi Province, China), Nanlu Zhao (Shaanxi Province, China), Ruoyu Hao (Shaanxi Province, China), Qirang Yang (Shaanxi Province, China) and Jiamin Zhao (Shaanxi Province, China).

According to the abstract* re...