Inventor

HEFFERAN ALFRED

US4 patents

Patents

4 patents

US7032743B2Apr 25, 2006

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DBT GMBH18 citations81

US6896121B2May 24, 2005

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DBT GMBH17 citations81

US6966429B2Nov 22, 2005

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DBT GMBH8 citations70

US7325670B2Feb 5, 2008

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DBT GMBH5 citations60