US Patent Issued to HANGZHOU OXYGEN PLANT GROUP on June 23 for "Device and method for recovering gas with variable low-temperature" (Chinese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,210, issued on June 23, was assigned to HANGZHOU OXYGEN PLANT GROUP Co. LTD. (Hangzhou City, China).

"Device and method for recovering gas with variable low-temperature" was invented by Yisong Han (Hangzhou City, China), Fang Tan (Hangzhou City, China), Yunyun Jiang (Hangzhou City, China), Fei Gao (Hangzhou City, China), Shuai Han (Hangzhou City, China), Xudong Peng (Hangzhou City, China) and Yunfeng Wen (Hangzhou City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for recovering variable low-temperature gas includes a low temperature stabilizing system, a compression system, an expansion refrigeration system, and a heat exchange sys...