ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,796, issued on Oct. 7, was assigned to KCI USA INC. (San Antonio).

"Wound dressing with adhesive margin" was invented by William Pigg (Elvington, Great Britain), Michelle Delbono (Earby, Great Britain) and Sally Stephens (Skipton, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wound dressing comprising: a backing sheet; a layer of pressure-sensitive adhesive on the backing sheet; an island of absorbent material having smaller area than the backing sheet and applied onto a central region of the backing sheet so as to leave a margin of adhesive-coated backing sheet around the absorbent material, and an apertured wound facing layer appli...