Russell Shields

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for updating, enhancing or refining a geographic...
- Patent number 6,516,267
- Issue date Feb 4, 2003
- Navigation Technologies Corporation
- Kevin Cherveny
- G08 - SIGNALLING
Information Patent Grant
System and method for updating, enhancing or refining a geographic...
- Patent number 6,047,234
- Issue date Apr 4, 2000
- Navigation Technologies Corporation
- Kevin Cherveny
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
System and method for updating, enhancing, or refining a geographic...
- Publication number 20050149259
- Publication date Jul 7, 2005
- Kevin Cherveny
- G08 - SIGNALLING