Average Co-Inventor Count = 5.95
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. At+t Corp. (3 from 4,208 patents)
2. Other (1 from 832,718 patents)
3. At&t Intellectual Property I, L.p. (1 from 16,481 patents)
5 patents:
1. 7548550 - Intelligent peripheral concentrator
2. 6917625 - Intelligent peripheral concentrator
3. 6591315 - Remote intelligent peripheral routing method and apparatus
4. 6396917 - Subscriber announcement system
5. 5796812 - Method for transferring call-specific data between called parties