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. 8504478 - Systems, methods and computer program products for performing mass transit merchant transactions
2. 8117129 - Systems, methods and computer program products for performing mass transit merchant transactions