November 3, 2016 – Petitioner Duk San Neolux Co., Ltd. filed a petition for inter partes review on November 2, 2016. The Patent Owner is Idemitsu Kosan Co., Ltd. The Petition challenges claims 1, 3, 4, and 14-16 of U.S. Patent No. 9,056,870 titled “Material for organic electroluminescence device and organic electroluminescence device using the same.” The case is pending at the U.S. Patent Trial and Appeal Board and is captioned Petition for Inter Partes Review by Duk San Neolux Co., Ltd., IPR2017-00197.
By: Una Fan