US Patent Issued to 3M Innovative Properties on April 15 for "Abrasive particles, method of making abrasive particles, and abrasive articles" (Minnesota Inventor)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,884, issued on April 15, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Abrasive particles, method of making abrasive particles, and abrasive articles" was invented by Negus B. Adefris (St. Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Shaped ceramic abrasive particles include a first surface having a perimeter having a perimeter comprising at least first and second edges. A first region of the perimeter includes the second edge and extends inwardly and terminates at two corners defining first and second acute interior angles. The perimeter has at most four corners that define acute interior angles. A second surface is ...