Average Co-Inventor Count = 6.22
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 832,812 patents)
4 patents:
1. 6526272 - Reducing calling costs for wireless phones using multiple mobile identification numbers
2. 6439456 - Method for transferring money
3. 6206283 - Method and apparatus for transferring money via a telephone call
4. 6208726 - System and method for automated emergency call breakthrough