Average Co-Inventor Count = 3.00
ph-index = 4
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. (4 from 16,478 patents)
2. At+t Corp. (2 from 4,208 patents)
3. Other (1 from 832,680 patents)
7 patents:
1. 9628626 - Voice-messaging with attachments
2. 9160860 - Voice-messaging with attachments
3. 8761357 - Voice-messaging with attachments
4. 8494125 - Voice-messaging with attachments
5. 8085908 - Voice-messaging with attachments
6. 7466803 - Voice-messaging with attachments
7. 7212614 - Voice-messaging with attachments