Inventor
FERENCZI ANDRAS
US17 patents
Patents
17 patentsUS10832247B2Nov 10, 2020
Systems and methods for blockchain based payment networks
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US10097663B1Oct 9, 2018
Using integrated code to extract device characteristics for online security
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC28 citations88
US11449887B2Sep 20, 2022
Systems and methods for loyalty point distribution
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC6 citations83
US11669841B2Jun 6, 2023
Systems and methods for blockchain based payment networks
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC2 citations71
US11468439B2Oct 11, 2022
Systems and methods for blockchain based proof of payment
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC4 citations70
US12340374B2Jun 24, 2025
Systems and methods for blockchain based payment networks
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12229794B2Feb 18, 2025
Systems and methods for loyalty point distribution
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12093948B2Sep 17, 2024
Zero-knowledge proof payments using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US11748750B2Sep 5, 2023
Zero-knowledge proof payments using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12450600B2Oct 21, 2025
Systems and methods for blockchain based proof of payment
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations59
US12217279B2Feb 4, 2025
Systems and methods for loyalty point distribution
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations59
US11699166B2Jul 11, 2023
Multi-merchant loyalty point partnership
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations59
US12561712B2Feb 24, 2026
Loyalty point distributions using a decentralized loyalty ID
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations58
US11397962B2Jul 26, 2022
Loyalty point distributions using a decentralized loyalty ID
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations58
US12361422B2Jul 15, 2025
Biometric-based identity verification using zero-knowledge proofs
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations53
US11645654B2May 9, 2023
Biometric-based identity verification using zero-knowledge proofs
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations53
US10721324B2Jul 21, 2020
Transaction authorizations using device characteristics
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations46