Average Co-Inventor Count = 5.00
ph-index = 1
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, L.p. (3 from 16,478 patents)
2. Ameritech Corporation (1 from 159 patents)
4 patents:
1. 8755406 - Multiple channel system for a twisted pair telephone wire local loop system
2. 8396077 - Multiple channel system for a twisted pair telephone wire local loop system
3. 7664138 - Multiple channel system for a twisted pair telephone wire local loop system
4. 6687261 - Multiple channel system for a twisted pair telephone wire local loop system