Dow Corning, a global leader in silicones, silicon-based technology and innovation, announced that the European Patent Office (EPO) rejected a request to revoke patent EP-1556443. The patent is part of the rich intellectual property (IP) portfolio that protects the company’s proprietary high refractive index (RI) phenyl-silicone-based optical encapsulant technology, which offers enhanced light output, improved reliability and other benefits for high-brightness LED lighting designs.  The EPO’s decision significantly strengthens Dow Corning’s IP position in Europe’s fast-growing LED lighting market where patent compliance is strategically important, as well as other key global LED manufacturing centers, such as the U.S., Japan, Korea and China.