ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,509, issued on March 4, was assigned to Smith & Nephew Inc. (Memphis, Tenn.) and University of Massachusetts (Boston).

"Negative pressure wound closure device" was invented by Philip David Canner (Cambridge, Great Britain), Raymond M. Dunn (Shrewsbury, Mass.), John Alan Greenwood (West Yorkshire, Great Britain), Victoria Jody Hammond (Hull, Great Britain), Edward Yerbury Hartwell (Hull, Great Britain), John Kenneth Hicks (Pocklington, Great Britain), Elizabeth Mary Huddleston (Copmanthorpe, Great Britain), Andrew Kelly (Hitchin, Great Britain), Andrew Linton (Woodthorpe, Great Britain), Marcus Damian Phillips (Grimsby, Great Britain), Mark Richardson (Grimsby, Great Britain), Carl...