ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,180, issued on May 20, was assigned to PIEDMONT SCIENTIFIC (ZHUHAI) Co. LTD. (Guangdong, China).
"Refrigeration equipment" was invented by Jiahua Xiao (Guangdong, China) and Dongbo Su (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a refrigeration equipment comprising a storage tank, a delivery pipeline, a recovery pipeline, a cold energy generator, a first cold energy exchanger and a second cold energy exchanger. The refrigeration equipment can improve the utilization efficiency of cold energy, and can also advantageously control the rewarming process in an accurate way."
The patent was filed on July 17, 2019, under Ap...