Average Co-Inventor Count = 3.00
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. Visa International Service Association (3 from 2,529 patents)
3 patents:
1. 12170730 - Unique token authentication verification value
2. 11329822 - Unique token authentication verification value
3. 10361856 - Unique token authentication cryptogram