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, L.p. (1 from 16,478 patents)
2. Sbc Properties, L.p. (1 from 205 patents)
3. Ameritech Corporation (1 from 159 patents)
3 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
3. 6466653 - Text-to-speech preprocessing and conversion of a caller's ID in a telephone subscriber unit and method therefor