Average Co-Inventor Count = 1.77
ph-index = 18
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 Corp. (27 from 4,208 patents)
2. At&t Intellectual Property I, LP (14 from 16,497 patents)
3. Other (1 from 832,880 patents)
4. At&t Mobility II LLC (1 from 2,868 patents)
43 patents:
1. 9628626 - Voice-messaging with attachments
2. 9214154 - Personalized text-to-speech services
3. 9160860 - Voice-messaging with attachments
4. 8918322 - Personalized text-to-speech services
5. 8891410 - Voice-over-IP enabled chat
6. 8761357 - Voice-messaging with attachments
7. 8494125 - Voice-messaging with attachments
8. 8355349 - Voice-over-IP enabled chat
9. 8085908 - Voice-messaging with attachments
10. 7962648 - Method for service processor discrimination and precedence in a Voice-over-Internet-Protocol (VoIP) network
11. 7864939 - Call arrangement and connection using messaging
12. 7822184 - Call hold signaling
13. 7804818 - Method for maintaining signaling history in a Voice-over-Internet-Protocol (VoIP) network
14. 7660294 - Voice-over-IP enabled chat
15. 7606905 - Method for service processor discrimination and precedence in a voice-over-internet-protocol (VoIP) network