US Patent Issued to BEIJING JINGKELUN ENGINEERING DESIGN AND RESEARCH INSTITUTE on July 1 for "Single-stage carbon dioxide multi-split cooling and heating multifunctional central air conditioner" (Chinese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,457, issued on July 1, was assigned to BEIJING JINGKELUN ENGINEERING DESIGN AND RESEARCH INSTITUTE Co. LTD. (Beijing).

"Single-stage carbon dioxide multi-split cooling and heating multifunctional central air conditioner" was invented by Jianguo Yang (Beijing), Chengjun Zhou (Beijing), Weibo Xie (Beijing), Quanjiang Wang (Beijing), Jianhui Kang (Beijing), Jilong Zhang (Beijing), Hui Zhao (Beijing), Lixuan Hao (Beijing), Tongqin Mao (Beijing), Wenjie Cao (Beijing), Haiying Chao (Beijing), Jiujiang Li (Beijing), Xianting Zeng (Beijing) and Shiheng Yang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A single-stage carbon dioxide multi-split cool...