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John P. Whitacre
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New Haven, IN, US
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last 30 patents
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Patent Grant
Cooling gallery for pistons
Patent number
5,979,298
Issue date
Nov 9, 1999
Zellner Pistons, LLC
John P. Whitacre
B22 - CASTING POWDER METALLURGY
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Patent Grant
Cast piston having reinforced combustion bowl edge
Patent number
5,660,156
Issue date
Aug 26, 1997
Zollner Corporation
John P. Whitacre
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Piston having oval shaped crown
Patent number
5,261,321
Issue date
Nov 16, 1993
Zollner Corporation
John P. Whitacre
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS