US Patent Issued to 3M Innovative Properties on Oct. 6 for "Acoustic articles and assemblies" (Minnesota Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,755,726, issued on Oct. 6, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Acoustic articles and assemblies" was invented by Nicole D. Petkovich (Little Canada, Minn.), Michelle M. K. Mok (St. Paul, Minn.), Michael R. Berrigan (Oakdale, Minn.), Jonathan H. Alexander (Roseville, Minn.), Samantha D. Smith (Minneapolis), Yongbeom Seo (Woodbury, Minn.) and Daniel E. Johnson (Marine On St. Croix, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are acoustic articles (100) that include a porous layer (102) and heterogeneous filler (104) received in the porous layer. The heterogeneous filler is substantially non-porous and p...