ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,071, issued on June 24, was assigned to ALFA LAVAL VICARB SAS (Fontanil Cornillon, France).
"Plate heat exchanger" was invented by Frederic Rondet (Saint Ismier, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A plate heat exchanger comprising a top head, a bottom head, four side panels and four corner girders. The side panels and the corner girders extend along a longitudinal direction from the bottom head to the top head, and each side panel is associated with two corner girders. The top head, the bottom head, the four side panels and the four corner girders are joined together to form a sealed enclosure for housing a plate pack of stacked h...