Other lossy formats exist. Among these, mp3PRO, AAC, and MP2 are all members of the same technological family as MP3 and depend on roughly similar psychoacoustic models. The <answer>Fraunhofer Gesellschaft</answer> owns many of the basic patents underlying these formats as well, with others held by Dolby Labs, Sony, Thomson Consumer Electronics, and AT&T.
Which company owns many of the patents that cover the other formats?
Fraunhofer Gesellschaft