US Patent Issued to 3M Innovative Properties on Nov. 3 for "Respirator including adjustable strap and method of forming same" (Minnesota Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,223, issued on Nov. 3, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Respirator including adjustable strap and method of forming same" was invented by Dean R. Duffy (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of a filtering face-piece respirator and a method of forming such respirator are disclosed. The filtering face-piece respirator includes a mask body having a filtering structure and an attachment region disposed on the mask body that includes a connected portion and an aperture disposed in the connected portion. Two or more layers of the filtering structure are connected together to form...