ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,527, issued on Aug. 12.
"Method for producing an object provided with riblets on and/or in the surface, and object produced thereby" was invented by Peter Leitl (Graz, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing an object with riblets on and/or in the surface, around which object a fluid flows during use. A frictional resistance acting on a surface region along a flow direction during a flow around the object in the fluid is calculated and added up to a cumulative frictional resistance over a length of the surface region in the flow direction, after which the riblets are provided on and/or in a partial region of the...