Ideahub (former ETRI) HEVC patent revocation confirmed by EPO appeal

On November 6, 2025, the EPO Board of Appeals confirmed the complete revocation of all claims of EP 3402195. The EP ‘195 patent is currently owned by Ideahub Inc. but was previously owned by the Electronics and Telecommunications Research Institute (ETRI). The EP ‘195 patent involves improving the efficiency of encoding and decoding methods with particular reference to determining quantization parameters for encoding and decoding object blocks such that the quantization parameters are adaptively set according to prevailing or neighboring conditions. It is related to patents that have been declared essential to Access Advance and SISVEL’s AV1 patent pool.

Unified is represented by Dr. Andrew McGettrick and Dr. Susan Keston at HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

ETRI video codec patent revocation remains in place

On October 13, 2025, the Electronics and Telecommunications Research Institute (ETRI) withdrew their appeal of the EPO decision to revoke EP 3767952, canceling the hearing scheduled for November 11, 2025. Thus, the EP '952 stands revoked in its entirety. The EP ‘952 patent relates to an apparatus for encoding image data and an apparatus for decoding image data, where the encoding/decoding makes use of motion vector coding for image compression, particularly an inter prediction method. It is related to patents that have been designated essential to the Access Advance patent pool and has also been identified as potentially essential to the Versatile Video Coding (VVC) standard.

Unified was represented by Owain Summers, Andrew McGettrick, and Susan Keston at HGF Law and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

Dolby VVC patent revocation confirmed by EPO appeal

On July 7, 2025, the EPO Board of Appeals confirmed the decision to revoke all claims of EP 3675491, owned by Dolby International AB. EP ‘491 generally relates to video coding techniques that use data hiding to decrease bandwidth. The patent is related to patents that are designated essential to the Access Advance patent pool and has also been identified as potentially essential to the Versatile Video Coding (VVC) standard.

Unified was represented by Dr. Andrew McGettrick and Dr. Susan Keston at HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

Dolby HEVC patent revocation confirmed by EPO appeal

On July 7, 2025, the EPO Board of Appeals confirmed the decision to revoke all claims of EP 3694209 B1, owned by Dolby International AB. EP ‘209 generally relates to video coding techniques that use data hiding to decrease bandwidth. The patent is related to others that have been designated essential to the Access Advance (HEVC) pool. EP ’209 has also been identified as potentially essential to the Versatile Video Coding (VVC) standard. This filing is a part of Unified’s ongoing efforts in its SEP Video Codec Zone.

Unified was represented by Dr. Andrew McGettrick and Dr. Susan Keston at HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.

GEVC video codec patent revocation confirmed by EPO appeal

On July 3, 2025, the EPO's appellate board confirmed the decision to revoke EP 3151566. The EP ‘566 patent is owned by GE Video Compression, LLC. The EP ’566 patent is part of a family purportedly essential to HEVC and part of the Access Advance patent pool. This filing is a part of Unified’s ongoing efforts in its SEP Video Codec Zone.

Unified was represented by Dr. Andrew McGettrick and Dr. Susan Keston of HGF Law, and by in-house counsel, Jessica L.A. Marks and Roshan Mansinghani.