ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,369, issued on Sept. 23, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Systems and methods for improved respiratory protection devices" was invented by Caroline M. Ylitalo (Stilwater, Minn.), Marie D. Manner (St. Paul, Minn.), Kevin W. Gotrik (Hudson, Wis.), Matthew T. Scholz (Woodbury, Minn.) and Gina M. Daveloose (Maplewood, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nose foam for a respiratory protection device is presented that includes a first check portion, a second check portion, and a nose bridge portion. The first and second check portions are both wider than the nose bridge portion. The nose foam is selected...