On December 20, 2021, the China National Intellectual Property Administration declared all claims of CN102256122, owned by Dolby International AB, invalid. CN102256122 is purportedly essential or related to patents purportedly essential to the HEVC Advance pool and SISVEL’s AV1 and VP9 pools.

Unified is represented by JZMC Patent and Trademark Law Office, and the case is managed by in-house counsel, Jessica L.A. Marks and Jung Hahm.