Average Co-Inventor Count = 2.07
ph-index = 5
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 (4 from 16,507 patents)
2. Bellsouth Intellectual Property Corporation (4 from 987 patents)
3. At&t Delaware Intellectual Property Corporation, Inc. (1 from 178 patents)
4. At&t Bls Intellectual Property, Inc (1 from 96 patents)
10 patents:
1. 8468451 - Online customer service via website navigation intervention
2. 7991135 - Methods, systems and computer products for always-on dialtone incentive to purchase wireline telephone services
3. 7903640 - System and method for voice over internet protocol using a standard telephone system
4. 7742945 - Methods, systems and computer products to incentivize high speed internet access
5. 7391761 - System and method for voice over internet protocol using a standard telephone system
6. 7295659 - Method and system for prepaid communications credit
7. 7257207 - Method and system for paying prepaid communications credit
8. 7120237 - Systems and methods for collect call processing
9. 6961412 - Method and system for prepaid communications credit
10. 6950506 - Method and system for paying prepaid communications credit