ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,220, issued on March 18, was assigned to Oriental Recreational Products (Shanghai) Co. LTD (Shanghai).
"Electric fin and water transport instrument" was invented by Zhiyue Wang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "This present invention relates to an electric fin and a water sports instrument, wherein the electric fin comprises a housing extending along a first direction and having a water inlet cavity; and a propeller and a guide member sequentially arranged in the first direction, wherein the propeller is located in the water inlet cavity, at least part of the guide member is located in the water inlet cavity, the water flow i...