Seoul Semiconductor Win Repeated Attempts to Challenge its White LED Patent - Seoul Semiconductor (KOSDAQ: 046890), one of the eight largest LED manufacturers in the world, announced today that on October 11, 2007 the Patent Court of Korea turned down appeals brought by Taiwan-based Advanced Optoelectronic Technology Inc.(AOT) and Korea-based ITSWELL to overturn earlier decisions from the Korean Intellectual Property Tribunal. The Tribunal had rejected patent invalidation actions brought by AOT and ITSWELL against Seoul Semiconductor's utility patent for producing white LED. In 2005, Seoul Semiconductor filed and won all the preliminary injunctions for infringement of patent pertaining to its white LED against AOT and ITSWELL in Seoul Central District Court. AOT and ITSWELL responded to these injunctions by filing invalidation actions against Seoul Semiconductor's white LED patent in the Korean Intellectual Property Tribunal citing that Seoul Semiconductor's white LED patent lacks novelty.