Average Co-Inventor Count = 6.00
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. Sbc Properties, L.p. (4 from 205 patents)
2. Ameritech Corporation (1 from 159 patents)
5 patents:
1. 7356138 - Method of operating a virtual private network
2. 7190780 - Method of operating a virtual private network
3. 7142655 - Platform for rapid development of telecommunications services
4. 6741693 - Method of operating a virtual private network
5. 6141409 - Method of operating a virtual private network