Average Co-Inventor Count = 4.00
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. American Express Travel Related Services Company, Inc. (2 from 1,453 patents)
2 patents:
1. 7672870 - System and method for monitoring consumer purchasing activity
2. 7398226 - System and method for networked loyalty program