Average Co-Inventor Count = 6.12
ph-index = 3
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. (3 from 16,478 patents)
2. Ameritech Corporation (3 from 159 patents)
3. Sbc Properties, L.p. (1 from 205 patents)
7 patents:
1. 8144843 - System and method for accessing a messaging service using a short dialing sequence
2. 7903805 - Method and system for providing enhanced call waiting
3. 7567655 - System and method for accessing a messaging service using a short dialing sequence
4. 7095826 - Method and system for providing enhanced call waiting
5. 6718018 - System and method for accessing a messaging service using a short dialing sequence
6. 6539079 - Method and system for providing enhanced call waiting
7. 6453018 - System and method for accessing a messaging service using a short dialing sequence