Average Co-Inventor Count = 4.00
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. (4 from 1,452 patents)
4 patents:
1. D827026 - Transaction card
2. D813301 - Transaction card
3. D812685 - Transaction card
4. D804569 - Transaction card