Average Co-Inventor Count = 5.66
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. Ameritech Corporation (2 from 159 patents)
2. At&t Intellectual Property I, LP (1 from 16,507 patents)
3. Sbc Properties, L.p. (1 from 205 patents)
4. At&t Knowledge Ventures, LP (1 from 75 patents)
5 patents:
1. 8036354 - Calling-party-pays call processing for cellular and paging
2. 7366292 - Call management reports
3. 7257209 - Calling-party-pays call processing for cellular and paging
4. 6570970 - Calling-party-pays call processing for cellular and paging
5. 6263056 - Calling-party-pays call processing for cellular and paging