Average Co-Inventor Count = 4.61
ph-index = 3
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. American Express Travel Related Services Company, Inc. (5 from 1,453 patents)
5 patents:
1. 10430821 - Prepaid rewards credited to a transaction account
2. 9613361 - System and method for E-mail based rewards
3. 9569789 - System and method for administering marketing programs
4. 9558505 - System and method for prepaid rewards
5. 9412102 - System and method for prepaid rewards