E Ink Successfully Defends Patent Infringement Case

E Ink Corporation announced that the US Court of Appeals for the Federal Circuit ruled in E Ink’s favor regarding an intellectual property lawsuit brought by Research Frontiers Incorporated (RFI) against E Ink in 2013. The Federal Circuit’s order affirmed an earlier District Court judgment of no patent infringement by E Ink.
 
“E Ink has spent hundreds of millions of dollars to develop a proprietary and unique EPD [electrophoretic display] electronic paper display that is the key component in almost every electronic reader and many other products today. It is fundamentally different from the SPD technology developed by RFI that is used in a small number of niche applications. We are gratified by such a strong statement by the Federal Circuit in favor of E Ink and its customers, confirming that the RFI patents in question are not relevant to E Ink displays and the products that depend on them,” said Michael McCreary, E Ink’s CTO.
 
RFI had sued E Ink and several of its customers in 2013 for infringement of three of RFI’s suspended particle device (SPD) patents, but stayed its case against E Ink’s customers pending a ruling against E Ink. The judgment of non-infringement also extends to these defendants.
 
E Ink has more than 600 US patents, and 1,374 worldwide patents.