Average Co-Inventor Count = 5.00
ph-index = 8
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. (6 from 205 patents)
2. Ameritech Corporation (4 from 159 patents)
3. Northern Telecom Limited (3 from 2,276 patents)
4. Other (1 from 832,680 patents)
5. At&t Intellectual Property I, L.p. (1 from 16,478 patents)
12 patents:
1. 8687773 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls
2. 7272221 - System and method for providing telephony services to remote subscribers
3. 7162014 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls
4. 7068762 - Method and system for providing visual notification in a unified messaging system
5. 7020268 - System and method for providing telephony services to remote subscribers
6. 6868144 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls
7. 6807272 - System and method for providing telephony services to remote subscribers
8. 6782079 - Method and system for filter based message processing in a unified messaging system
9. 6498835 - Method and system for providing visual notification in a unified messaging system
10. 6487278 - Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls
11. 6438215 - Method and system for filter based message processing in a unified messaging system
12. 6411704 - System and method for providing telephony services to remote subscribers