Average Co-Inventor Count = 1.33
ph-index = 2
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. Other (1 from 832,880 patents)
2. At+t Corp. (1 from 4,208 patents)
2 patents:
1. 6064878 - Method for separately permissioned communication
2. 5719560 - Method of automatic verification of personal identity