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Christopher J. Griffin
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Inver Grove Heights, MN, US
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last 30 patents
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Patent Grant
Fiber reinforced, titanium composite engine valve
Patent number
6,009,843
Issue date
Jan 4, 2000
3M Innovative Properties Company
Christopher J. Griffin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Patent Grant
Continuous fiber reinforced aluminum matrix composite pushrod
Patent number
5,720,246
Issue date
Feb 24, 1998
Minnesota Mining and Manufacturing
Christopher J. Griffin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES