Average Co-Inventor Count = 3.00
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. AT&T Intellectual Property I, LP (1 from 16,492 patents)
2. At&t Knowledge Ventures, LP (1 from 71 patents)
2 patents:
1. 8150025 - Flexible ring-tone service
2. 7233658 - Flexible ring-tone service