ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,088, issued on May 13, was assigned to WIELAND-WERKE AG (Ulm, Germany).
"Metal heat exchanger tube" was invented by Achim Gotterbarm (Dornstadt, Germany), Manfred Knab (Dornstadt, Germany), Ronald Lutz (Blaubeuren, Germany), Zhong Luo (Shanghai) and Jianying Cao (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A metal heat exchanger tube having integral fins formed on the tube outside. The fins have a fin foot, fin flanks and a fin tip, and the fin foot protrudes radially from the tube wall. The tube includes a channel with a channel base and spaced-apart additional structures dividing the channel between the fins into segments and limiting ...