Average Co-Inventor Count = 4.00
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 (3 from 16,492 patents)
2. Ameritech Corporation (1 from 159 patents)
4 patents:
1. 8611508 - Method an apparatus for converting a voice signal received from a remote telephone to a text signal
2. 7983400 - Method and apparatus for converting a voice signal received from a remote telephone to a text signal
3. 7966215 - Combination reservation and navigation system and method
4. 7359492 - Method and apparatus for converting a voice signal received from a remote telephone to a text signal