Average Co-Inventor Count = 3.30
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. (5 from 16,478 patents)
2. Sbc Technology Resources, Inc. (3 from 169 patents)
3. Sbc Properties, L.p. (1 from 205 patents)
4. At&t Knowledge Ventures, LP (1 from 71 patents)
5. Sbc Services, Inc. (1 from 12 patents)
6. Sbc Holdings Properties, L.p. (1 from 4 patents)
11 patents:
1. 8781091 - Method and system for providing enhanced caller identification information including screening invalid calling party numbers
2. 8284912 - Method and system for providing enhanced caller identification information including screening invalid calling party numbers
3. 8077847 - DTMF lockout utility using epoch time stamp
4. 8014508 - Access code enhancement for caller preview service
5. 7623638 - Method and system for providing enhanced caller identification information including screening invalid calling party numbers
6. 7529361 - Method for NPA split processing
7. 7388951 - Access code enhancement for caller preview service
8. 7372954 - Method for NPA split processing
9. 7366287 - DTMF lockout utility epoch time stamp
10. 7139385 - Method for NPA split processing on a service control point
11. 7068767 - Method and system for providing enhanced caller identification information including screening invalid calling party numbers