Average Co-Inventor Count = 10.66
ph-index = 6
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. (8 from 205 patents)
2. At&t Intellectual Property I, LP (7 from 16,497 patents)
3. Ameritech Corporation (5 from 159 patents)
20 patents:
1. 8630302 - System and network for deriving voice channels on a broadband communication line
2. 8238354 - Wide area communication networking
3. 8155296 - Method, system, and article for audibly identifying a called party
4. 7940907 - Method, system, and article for placing a telephone call to a previously-called party
5. 7577243 - Method, system, and article for determining an availability of a telecommunication device
6. 7525990 - Wide area communication networking
7. 7450707 - Method, system, and article for audibly identifying a called party
8. 7257198 - Method, system, and article for informing a telecommunication customer of a future performance estimate for a telecommunication feature
9. 7218717 - Method, system, and article for audibly identifying a called party
10. 7203296 - Method, system, and article for placing a telephone call to a previously-called party
11. 7187686 - Telecommunication system, method and subscriber unit for use therein
12. 7180995 - Method and apparatus for demonstrating telecommunications products
13. 7126958 - Telecommunication system, method and subscriber unit for use therein
14. 6876739 - Method and apparatus for demonstrating telecommunications products
15. 6674839 - Method, system, and article for informing a telecommunication customer of a future performance estimate for a telecommunication feature