US 12,340,374 B2
Systems and methods for blockchain based payment networks
Sastry Durvasula, Phoenix, AZ (US); Andras Ferenczi, Peoria, AZ (US); Upendra Mardikar, San Jose, CA (US); Keshav Narsipur, Chandler, AZ (US); Vishnuvajhala Subrahmanyam, Phoenix, AZ (US); and Sathish B. Muthukrishnan, Phoenix, AZ (US)
Assigned to American Express Travel Related Services Company, Inc., New York, NY (US)
Filed by American Express Travel Related Services Company, Inc., New York, NY (US)
Filed on Apr. 26, 2023, as Appl. No. 18/307,586.
Application 18/307,586 is a continuation of application No. 17/068,439, filed on Oct. 12, 2020, granted, now 11,669,841.
Application 17/068,439 is a continuation of application No. 15/266,350, filed on Sep. 15, 2016, granted, now 10,832,247, issued on Nov. 10, 2020.
Prior Publication US 2023/0267469 A1, Aug. 24, 2023
Int. Cl. G06Q 20/40 (2012.01); G06Q 20/10 (2012.01); G06Q 20/36 (2012.01); G06Q 20/38 (2012.01)
CPC G06Q 20/4016 (2013.01) [G06Q 20/10 (2013.01); G06Q 20/3678 (2013.01); G06Q 20/3829 (2013.01); G06Q 20/389 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a digital wallet service for a blockchain driven Deer-to-peer payment network, a request to complete a transaction from a digital crypto currency account associated with a payer digital wallet for entry on a blockchain ledger, wherein the request to complete the transaction includes a fiat currency amount and a payee address associated with a fiat currency account;
sending, by the digital wallet service for the blockchain driven Deer-to-Deer payment network to a digital currency smart contract residing on the blockchain ledger, the request to complete the transaction to the blockchain ledger;
approving, by a risk assessment service for the blockchain driven peer-to-peer payment network, the request to complete the transaction; and
adjusting, by the digital currency smart contract residing on the blockchain ledger, a balance of the digital crypto currency account associated with the payer digital wallet and a balance of the fiat currency account in response to approval of the request to complete the transaction by writing the transaction comprising the fiat currency amount and the payee address to the blockchain ledger, wherein a value of the digital crypto currency substantially matches the fiat currency amount.