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.
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