Average Co-Inventor Count = 5.00
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. Visa U.s.a. Inc. (4 from 475 patents)
4 patents:
1. 9160741 - Remote authentication system
2. 8918637 - Remote authentication system
3. 8631231 - Mobile device initiated transaction
4. 8156543 - Method and system for authenticating a party to a transaction