On October 7, 2021, Unified Patents filed a Japanese opposition against JP6855419, currently assigned to the Korea Advanced Institute of Science and Technology (KAIST) and the Electronics and Telecommunications Research Institute (ETRI). The JP‘419 patent, and its corresponding extended patent family, is one of the largest families known to be owned by KAIST. The JP‘419 patent is related to patents that have been designated essential in both the Access Advance (formerly known as HEVC Advance) and AV1 pools.

Unified is represented by Yukihiro Takemoto of Ace-ai IP Law Firm in Japan, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.