Warren Tan

Person

Thousand Oaks, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods and systems for secure user authentication
- Patent number 12,101,409
- Issue date Sep 24, 2024
- CITICORP CREDIT SERVICES, INC. (USA)
- Ronald Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for secure user authentication
- Patent number 11,917,069
- Issue date Feb 27, 2024
- CITICORP CREDIT SERVICES, INC. (USA)
- Ronald Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for secure user authentication
- Patent number 11,394,553
- Issue date Jul 19, 2022
- CITICORP CREDIT SERVICES, INC. (USA)
- Ronald Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for secure user authentication
- Patent number 9,768,963
- Issue date Sep 19, 2017
- Citicorp Credit Services, Inc. (USA)
- Ronald King-Hang Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for secure user authentication
- Patent number 9,002,750
- Issue date Apr 7, 2015
- Citicorp Credit Services, Inc. (USA)
- Ronald King-Hang Chu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Methods and systems for secure user authentication
- Patent number 7,904,946
- Issue date Mar 8, 2011
- Citicorp Development Center, Inc.
- Ronald King-Hang Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for certificate delivery and management
- Patent number 7,484,089
- Issue date Jan 27, 2009
- Citicorp Developmemt Center, Inc.
- Mark Kogen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for managing transaction card data
- Patent number 6,687,714
- Issue date Feb 3, 2004
- Citicorp Development Center, Inc.
- Mark Kogen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for using an application programmable smart card...
- Patent number 5,844,218
- Issue date Dec 1, 1998
- Transaction Technology, Inc.
- Joseph C. Kawan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for encrypting input from a touch screen
- Patent number 5,768,386
- Issue date Jun 16, 1998
- Transaction Technology, Inc.
- Randal H. Yokomoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Customer identification terminal
- Patent number D364386
- Issue date Nov 21, 1995
- Transaction Technology, Inc.
- Larry Bramlett
- D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND SYSTEMS FOR SECURE USER AUTHENTICATION
- Publication number 20110197266
- Publication date Aug 11, 2011
- Citicorp Development Center, Inc.
- Ronald King-Hang CHU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for token-based authentication
- Publication number 20010045451
- Publication date Nov 29, 2001
- Warren Yung-Hang Tan
- G06 - COMPUTING CALCULATING COUNTING

Person

Patents Grantslast 30 patents

Methods and systems for secure user authentication

Methods and systems for secure user authentication

Methods and systems for secure user authentication

Methods and systems for secure user authentication

Methods and systems for secure user authentication

Methods and systems for secure user authentication

Method and system for certificate delivery and management

Method and system for managing transaction card data

Method and system for using an application programmable smart card...

Method and system for encrypting input from a touch screen

Customer identification terminal

Patents Applicationslast 30 patents

METHODS AND SYSTEMS FOR SECURE USER AUTHENTICATION

Method and system for token-based authentication