ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,850, issued on March 31, was assigned to Lone Gull Holdings Ltd. (Portland, Ore.).
"Wave-powered propulsion shroud" was invented by Brian Lee Moffat (Portland, Ore.) and Garth Alexander Sheldon-Coulson (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are embodiments of a novel type of wave-powered propulsion adapted for use by buoyant vessels in order to provide or supplement their self-propulsion. An approximately vertical and semi-cylindrical propulsive shroud attached to a vessel interacts with a wave motion at and below the vessel in order to impart a thrust to the vessel."
The patent was filed on Oct. 8, 2024, under Ap...