I don't know anything about how the licencing works, and what parts are covered, but the patents reported to ITU for H.265/HEVC as a whole is substantial, see:

I don't know anything about how the licencing works, and what parts are covered, but the patents reported to ITU for H.265/HEVC as a whole is substantial, see: https://www.itu.int/itu-t/recommendations/related_ps.aspx?id_prod=11885 https://www.itu.int/itu-t/recommendations/related_ps.aspx?id...