Inventor

TOO HING SENG

US4 patents

⚠️ This page may combine multiple inventors who share the name “TOO HING SENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC

2 patents

US10789595B2Sep 29, 2020

Pseudo authorization messages

AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations47

US9665869B2May 30, 2017

Systems and methods for enhanced authorization fraud mitigation

AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC0 citations47

LEYVA MARCEL

2 patents

US8719167B2May 6, 2014

Systems and methods for enhanced authorization fraud mitigation

LEYVA MARCEL0 citations42

US8650120B2Feb 11, 2014

Systems and methods for enhanced authorization fraud mitigation

LEYVA MARCEL0 citations42