US Patent 7517501 Exhaust system for internal combustion engines
Patent 7517501 was granted and assigned to Audi on April, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
April 6, 2001
Date of Patent
April 14, 2009
Patent Application Number
10182568
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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