Average Co-Inventor Count = 2.00
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. Sbc Technology Resources, Inc. (2 from 169 patents)
2. At&t Intellectual Property I, L.p. (1 from 16,478 patents)
3 patents:
1. 8335305 - Monitoring and overriding features for telephone service system
2. 7433456 - Monitoring and overriding features for telephone service system
3. 6914970 - Monitoring and overriding features for telephone service system