US Patent Issued to York Guangzhou Air Conditioning and Refrigeration, Tyco Fire & Security on March 17 for "Heat pump system" (Chinese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,129, issued on March 17, was assigned to York Guangzhou Air Conditioning and Refrigeration Co. Ltd. (Qingyuan, China) and Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).

"Heat pump system" was invented by Xiening Qiu (Qingyuan, China), Tianlong Xiao (Qingyuan, China), Yong Wang (Qingyuan, China) and Bin Yuan (Qingyuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat pump system includes a compressor, a first heat exchanger, a second heat exchanger, and a valve device. The valve device includes a first connecting port connected to an exhaust port of the compressor, a second connecting port connected to a first port of th...