Average Co-Inventor Count = 1.00
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. First USA Bank, Na (1 from 16 patents)
2. Bank One, Delaware, National Association (1 from 8 patents)
2 patents:
1. D493195 - Transaction card
2. D462714 - Transaction card