Len Fenkel

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Pacifica, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for image verification to prevent messaging abuse
- Patent number 7,856,477
- Issue date Dec 21, 2010
- Yahoo! Inc.
- Miles Libbey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and system for image verification to prevent messaging abuse
- Publication number 20040199597
- Publication date Oct 7, 2004
- Yahoo! Inc.
- Miles Libbey
- G06 - COMPUTING CALCULATING COUNTING