Average Co-Inventor Count = 3.36
ph-index = 4
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. Bellsouth Intellectual Property Corporation (6 from 987 patents)
2. At&t Intellectual Property I, L.p. (5 from 16,481 patents)
3. At&t Delaware Intellectual Property Corporation, Inc. (3 from 178 patents)
14 patents:
1. 9219821 - Disposable telephone numbers
2. 8774384 - Disposable telephone numbers
3. 8509409 - Disposable telephone numbers
4. 8085921 - Disposable telephone numbers
5. 7864926 - System and method for conducting variable voice path assurance tests
6. 7469043 - Disposable telephone numbers
7. 7379536 - System and method for detecting SS7 messaging inefficiency
8. 7376139 - Inter-switch voicemail analysis tool
9. 7190766 - System and method for conducting variable voice path assurance tests
10. 7127054 - System and method for detecting SS7 messaging inefficiency
11. 7027579 - System and method for managing incoming telephone calls
12. 6970540 - Detection of common information elements in PSTN call processing patterns
13. 6778657 - Analog dialed digit unlock method and system
14. 6778658 - Digital dialed digit unlock method and system