John Ahrens

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Carol Stream, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for distributing information for storage media
- Patent number 6,823,255
- Issue date Nov 23, 2004
- Navteq North America, LLC.
- John Ahrens
- G01 - MEASURING TESTING
Information Patent Grant
System and method for distributing information for storage media
- Patent number 6,289,276
- Issue date Sep 11, 2001
- Navigation Technologies Corporation
- John Ahrens
- G01 - MEASURING TESTING
Information Patent Grant
System and method for distributing information for storage media
- Patent number 6,131,066
- Issue date Oct 10, 2000
- Navigation Technologies Corp.
- John Ahrens
- G01 - MEASURING TESTING
Information Patent Grant
System and method for distributing information for storage media
- Patent number 6,018,695
- Issue date Jan 25, 2000
- Navigation Technologies Corporation
- John Ahrens
- G01 - MEASURING TESTING
Information Patent Grant
System and method for distributing information for storage media
- Patent number 5,951,620
- Issue date Sep 14, 1999
- Navigation Technologies Corporation
- John Ahrens
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
System and method for distributing information for storage media
- Publication number 20020010542
- Publication date Jan 24, 2002
- John Ahrens
- G01 - MEASURING TESTING