Average Co-Inventor Count = 3.70
ph-index = 15
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 Technology Resources, Inc. (17 from 169 patents)
2. At&t Labs, Inc. (8 from 74 patents)
3. Southwestern Bell Technology Resources, Inc. (4 from 20 patents)
4. At&t Intellectual Property I, LP (1 from 16,497 patents)
5. Sbc Operations, Inc. (1 from 1 patent)
30 patents:
1. 7817793 - Advanced intelligent single telephone number routing
2. 7809121 - Identification of calling devices dialing a universal number to access a telecommunications relay service center
3. 7573997 - Local routing system and method
4. 7505575 - Method and system for processing telephone calls via a remote tie-line
5. 7421070 - Advanced intelligent single telephone number routing
6. 7302052 - Advanced intelligent single telephone number routing
7. 7274786 - Method and system for processing telephone calls via a remote tie-line
8. 7242753 - Local routing system and method
9. 7218719 - Advanced intelligent single telephone number routing
10. 7054431 - Method and system for generating call data reports
11. 6985568 - Billing for abbreviated dialing plan service
12. 6980636 - Advanced intelligent single telephone number routing
13. 6795539 - Local routing system and method
14. 6771753 - Billing for abbreviated dialing plan service
15. 6724874 - Outgoing call screening