Erik Hedberg

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Issaquah, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Challenge response messaging solution
- Patent number 7,447,744
- Issue date Nov 4, 2008
- Microsoft Corporation
- Andrew Wallace
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Challenge response messaging solution
- Publication number 20040249901
- Publication date Dec 9, 2004
- Microsoft Corporation
- Andrew Wallace
- H04 - ELECTRIC COMMUNICATION TECHNIQUE