US Patent Issued to 3M Innovative Properties on Aug. 11 for "Negative pressure reusable respirator system for safety event detection" (Minnesota Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,874, issued on Aug. 11, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Negative pressure reusable respirator system for safety event detection" was invented by David R. Stein (White Bear Lake, Minn.), Caroline M. Ylitalo (Stillwater, Minn.), Craig E. Colton (Stillwater, Minn.), Steven T. Awiszus (Woodbury, Minn.), Shane A. Hainey (Cottage Grove, Minn.), Richard C. Webb (St. Paul, Minn.), Scott A. Larson (Oakdale, Minn.), Andrew W. Long (Woodbury, Minn.) and Daniel B. Taylor (White Bear Lake, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a negative pressure reusable respirator configured to be worn by a work...