ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,562, issued on March 24, was assigned to OFIP Ltd. (Oxford, Great Britain).

"Flow restrictor" was invented by Matthew Collins (Oxford, Great Britain) and Antony Houghton (Oxford, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid-flow control device includes a valve aperture and a mounting member arranged downstream of the aperture. A valve member, movably mounted on the mounting member, controls the flow of fluid through the aperture. A control volume, defined between the mounting member and the valve member receives a control fluid from a control fluid feed. A variable flow restrictor is rotatably arranged within a restriction v...