Average Co-Inventor Count = 7.00
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. Sbc Properties, L.p. (1 from 205 patents)
2 patents:
1. 7706513 - Distributed text-to-speech synthesis between a telephone network and a telephone subscriber unit
2. 6870914 - Distributed text-to-speech synthesis between a telephone network and a telephone subscriber unit