A group of 19 companies that own patents related to MPEG-4, which is a streaming video technology aimed at wireless devices, said Thursday they have made significant progress in discussions aimed at offering licensees a single patent license.

The group, known as M4VisualPHG, had created a member group called MPEG LA, LLC to facilitate the discussions. Thursday that group reported what it called "substantial progress" toward creation of a single license for application and device vendors.