3M Files Patent Infringement Lawsuit to Protect Dental Restorative Technology

ST. PAUL, Minn.–(BUSINESS WIRE)–3M and 3M Innovative Properties Co. filed a patent infringement lawsuit
in federal district court in Wilmington, Del., last week against Kerr
Corporation. The suit alleges that Kerr Corporation’s SonicFill™ 2 and
Harmonize™ dental composite materials infringe 3M’s patent rights
directed to nanotechnology used in 3MTM FiltekTM
Supreme universal dental restoratives.

3M’s patented nanotechnology 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 600 million
restorations have been performed globally using the Filtek Supreme
universal restorative product line.

3M’s Oral Care Solutions Division is committed to improving oral care
through continuous investments in research and development and is
recognized globally as one of the most innovative dental companies.

“As an industry leader, we are committed to protecting our innovative
nanotechnology and associated intellectual property,” said Eric Wenzel,
global business director, 3M Oral Care Solutions Division.

About 3M
At 3M we apply science in collaborative ways to
improve lives daily. With $30 billion in sales, our 90,000 employees
connect with customers all around the world. Learn more about 3M's
creative solutions to the world's problems at www.3M.com
or on Twitter @3M or @3MNews.

Contacts

3M Media Contact:
Lori Anderson, 651-733-0831