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. At&t Intellectual Property I, LP (2 from 16,507 patents)
2. At+t Corp. (1 from 4,208 patents)
3 patents:
1. 8982876 - Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)
2. 8442032 - Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)
3. 7046658 - Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)