Inventor
Subrahmanyam Vishnuvajhala
US5 patents
Patents
5 patentsUS10832247B2Nov 10, 2020
Systems and methods for blockchain based payment networks
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC29 citations92
US11449887B2Sep 20, 2022
Systems and methods for loyalty point distribution
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US11669841B2Jun 6, 2023
Systems and methods for blockchain based payment networks
AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC2 citations71
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