US Patent Issued to 3M Innovative Properties on March 31 for "Coated abrasive articles and methods of making and using the same" (Minnesota Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,467, issued on March 31, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Coated abrasive articles and methods of making and using the same" was invented by Aaron K. Nienaber (Lake Elmo, Minn.), Joseph B. Eckel (Vadnais Heights, Minn.) and Ronald D. Jesme (Plymouth, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Coated abrasive articles comprises a backing having a major surface with an abrasive layer disposed thereon. The abrasive layer has an outer major surface comprising ridges separated by valleys, wherein the abrasive layer comprises magnetizable particles and abrasive particles in a binder. Each of the ridges is irregul...