Average Co-Inventor Count = 1.88
ph-index = 5
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, LP (7 from 16,507 patents)
2. Sbc Technology Resources, Inc. (5 from 169 patents)
3. At&t Labs, Inc. (1 from 74 patents)
13 patents:
1. 9060055 - Monitoring and overriding features for telephone service system
2. 8855288 - Monitoring and overriding features for telephone service system
3. 8335305 - Monitoring and overriding features for telephone service system
4. 8254268 - Methods and apparatus to perform quality testing in internet protocol multimedia subsystem based communication systems
5. 8194825 - Methods and apparatus for call surveillance in internet protocol communication networks
6. 8175081 - Method and system of screening and control of telephone calls while using a packet-switched data network
7. 7593396 - System and method for providing remote access to telecommunications services
8. 7508817 - Method and apparatus for measuring data transport quality over an internet protocol
9. 7433456 - Monitoring and overriding features for telephone service system
10. 7415007 - Method and system of screening and control of telephone calls while using a packet-switched data network
11. 6914970 - Monitoring and overriding features for telephone service system
12. 6891940 - System and method for providing remote access to telecommunications services
13. 6693897 - Method and system of screening and control of telephone calls while using a packet-switched data network