ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,224, issued on May 6, was assigned to Thetford BV (Etten-Leur, Netherlands).
"Refrigerator" was invented by Hao Bai (Liangning Province, China), Pieter-Dirk Berkhout (Dordrecht, Netherlands), Joost Marinius Van Rooijen (Kapelle, Netherlands) and Leendert Jan Antoon Jansen (Rotterdam, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator includes a housing defining an interior, a freezer disposed within the interior, and a cooling unit for cooling the interior of the refrigerator. The freezer has a freezer door. At least one ventilation duct vertically extends through the freezer door. The at least one ventilation duct has a first...