ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,177, issued on Dec. 16, was assigned to Tsinghua University (Beijing) and HON HAI PRECISION INDUSTRY Co. LTD. (New Taipei, Taiwan).

"Tubular heat exchanger and packaging method of tubular heat exchanger" was invented by Jian-Xun Ren (Beijing) and Jun-Hong Hao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tubular heat exchanger includes an upper tube plate box, a lower tube plate box, a plurality of heat exchange tubes, and a pressure bolt. Each heat exchange tube includes an inlet end and an outlet end opposite to the inlet end, the inlet end passes through the upper tube plate box, the outlet end passes through the lower tube plate box,...