Average Co-Inventor Count = 8.50
ph-index = 8
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)
2. Xatra Fund Mx, LLC (3 from 27 patents)
3. Chartoleaux Kg Limited Liability Company (2 from 5 patents)
4. Other (1 from 832,880 patents)
11 patents:
1. 9886692 - Securing a transaction between a transponder and a reader
2. 9454752 - Reload protocol at a transaction processing entity
3. 8872619 - Securing a transaction between a transponder and a reader
4. 8818907 - Limiting access to account information during a radio frequency transaction
5. 7889052 - Authorizing payment subsequent to RF transactions
6. 7668750 - Securing RF transactions using a transactions counter
7. 7607583 - Clear contactless card
8. 7306158 - Clear contactless card
9. 7249112 - System and method for assigning a funding source for a radio frequency identification device
10. 7239226 - System and method for payment using radio frequency identification in contact and contactless transactions
11. 7070112 - Transparent transaction device