Inventor
FERENCZI ANDRAS L
US44 patents
⚠️ This page may combine multiple inventors who share the name “FERENCZI ANDRAS L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC
39 patentsUS10642967B2May 5, 2020
Single sign-on solution using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC100 citations97
US11410136B2Aug 9, 2022
Procurement system using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC26 citations88
US11757640B2Sep 12, 2023
Non-fungible token authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC11 citations86
US11750570B1Sep 5, 2023
Decentralized messaging inbox
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC8 citations83
US11151558B2Oct 19, 2021
Zero-knowledge proof payments using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC12 citations83
US12229761B1Feb 18, 2025
Non-fungible tokens for payment instruments
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC5 citations75
US12160515B2Dec 3, 2024
Non-fungible token authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC2 citations73
US11757877B1Sep 12, 2023
Decentralized application authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations73
US11757641B2Sep 12, 2023
Decentralized data authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations73
US11538019B1Dec 27, 2022
Zero-knowledge proof-based virtual cards
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC4 citations73
US11922278B1Mar 5, 2024
Distributed ledger based feature set tracking
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC3 citations72
US11868911B1Jan 9, 2024
Distributed ledger based machine-learning model management
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC3 citations72
US11887112B2Jan 30, 2024
Hybrid identity as a service for decentralized browser based wallets
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC2 citations71
US11693976B2Jul 4, 2023
Peer-to-peer confidential document exchange
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations71
US11341503B2May 24, 2022
Deploying a cloud-based system using a distributed ledger
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC3 citations71
US10860726B2Dec 8, 2020
Peer-to-peer confidential document exchange
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC3 citations71
US10853353B2Dec 1, 2020
Blockchain-enabled datasets shared across different database systems
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC5 citations70
US12562912B2Feb 24, 2026
Application programming interface (API) provisioning using decentralized identity
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations62
US12323526B2Jun 3, 2025
Decentralized data authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations62
US12289310B2Apr 29, 2025
Decentralized application authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations62
US12254462B2Mar 18, 2025
Zero-knowledge proof-based virtual cards
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations62
US12423696B2Sep 23, 2025
Transaction authorization process using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations61
US12217252B2Feb 4, 2025
Hybrid identity as a service for decentralized browser based wallets
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations61
US11941627B2Mar 26, 2024
Transaction authorization process using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations61
US12354109B2Jul 8, 2025
Deploying a cloud-based system using a distributed ledger
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12242983B2Mar 4, 2025
Distributed ledger based machine-learning model management
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12242938B2Mar 4, 2025
Distributed ledger based feature set tracking
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12099592B2Sep 24, 2024
Single sign-on solution using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12002035B2Jun 4, 2024
Metaverse authentication
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US11762974B2Sep 19, 2023
Single sign-on solution using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US11443025B2Sep 13, 2022
Single sign-on solution using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations60
US12223500B2Feb 11, 2025
Transaction account data maintenance using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations59
US11282076B2Mar 22, 2022
Transaction account data maintenance using blockchain
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations57
US10755267B2Aug 25, 2020
Systems and methods for a merchant-specific payment token
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC1 citations57
US12277235B2Apr 15, 2025
Peer-to-peer confidential document exchange
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations55
US12132836B2Oct 29, 2024
Verified presentation of non-fungible tokens
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations52
US12288203B2Apr 29, 2025
Systems and methods for an electronic wallet payment tool
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations47
US12425229B2Sep 23, 2025
Offline decentralized identity-based communication for applications
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations46
US12223492B2Feb 11, 2025
Payment accessibility notifications
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations41