ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,044, issued on May 13, was assigned to N. A. M. TECHNOLOGY LTD. (Maalot, Israel).
"Multicascade heating system" was invented by Andrey Dobkin (Maalot, Israel) and Mikhael Sitkovsky (Carmiel, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi cascade heating system that comprises a plurality of heat-pump circuits successionally connected. The heat pump circuits are connected to one another by a common heat exchanger. Each of the heat pump circuits comprises a condenser and a refrigerant circulating in the heat pump circuit for heating a fluid flowing through the condenser. The fluid is successionally passing through the condenser of each h...