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 Properties, L.p. (2 from 205 patents)
2. At&t Knowledge Ventures, LP (1 from 71 patents)
3 patents:
1. 7447304 - System and method for routing both toll-free and caller-paid telephone calls to call service centers
2. 7224789 - System and method for routing both toll-free and caller-paid telephone calls to call service centers
3. 7006620 - System and method for routing both toll-free and caller-paid telephone calls to call service centers