MRO Magazine

3M Files Patent Infringement Lawsuit to Protect Nanofiller Universal Restorative Technology

March 25, 2015
By Business Wire News

ST. PAUL, Minn.

3M Co. and 3M Innovative Properties Co. filed a patent infringement lawsuit in federal district court in Minnesota today against Danville Materials Inc. The suit alleges that Danville’s sales of ZNanoTM universal nanocomposite materials infringe 3M’s patent rights directed to nanofiller technology used in 3MTM ESPETM FiltekTM Supreme universal restoratives.

3M’s patented nanofiller technology enables high aesthetic quality, strength and wear resistance. FiltekTM Supreme Universal Restorative was the first nanotechnology-based dental composite utilizing engineered nanoparticles that result in unsurpassed polish retention, excellent strength, and wear resistance. Over 400 million restorations have been performed globally using the Filtek Supreme product line and it is the number one selling dental nanocomposite in the U.S.

3M’s dental division, 3M ESPE, has been recognized as the most innovative dental company for the past ten years by the Anaheim Group. “3M ESPE is committed to protecting its innovative nanofiller technology and associated intellectual property,” said James D. Ingebrand, vice president, 3M ESPE.

About 3M

At 3M, we collaborate and apply science in powerful ways to improve lives daily. With $32 billion in sales, our 90,000 employees connect with and serve customers all around the world. Learn about 3M’s creative solutions to the world’s problems at or follow @3MNewsroom on Twitter.

3M and ESPE are trademarks of 3M or 3M Deutschland GmbH.

Lori Anderson, 651-733-0831