Average Co-Inventor Count = 6.22
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. (2 from 16,478 patents)
2. Sbc Properties, L.p. (1 from 205 patents)
3. Ameritech Corporation (1 from 159 patents)
4 patents:
1. 8144843 - System and method for accessing a messaging service using a short dialing sequence
2. 7567655 - System and method for accessing a messaging service using a short dialing sequence
3. 6718018 - System and method for accessing a messaging service using a short dialing sequence
4. 6453018 - System and method for accessing a messaging service using a short dialing sequence