US Patent Issued to 3M Innovative Properties on Jan. 20 for "Abrasive article and method of making the same" (Minnesota, Wisconsin Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,158, issued on Jan. 20, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Abrasive article and method of making the same" was invented by Junting Li (Woodbury, Minn.), Jing Zhang (Minneapolis), Kui Chen-Ho (Woodbury, Minn.), Michael J. Annen (Hudson, Wis.), Yuyang Liu (St. Paul, Minn.), Ann M. Gilman (Bayport, Minn.) and Kevin T. Reddy (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "An abrasive article comprises a porous substrate having openings extending through the porous substrate between first and second opposed major surfaces. An abrasive coating is disposed on only a portion of a first major surface of the porous su...