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Frank J Ritzert
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North Ridgeville, OH, US
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last 30 patents
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Patent Grant
Process for forming a single crystal superalloy wave spring
Patent number
10,780,514
Issue date
Sep 22, 2020
United States of America as represented by the Administrator of National Aero...
Jeffrey J. DeMange
B22 - CASTING POWDER METALLURGY
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Patent Grant
Process for forming a high temperature single crystal canted spring
Patent number
9,541,148
Issue date
Jan 10, 2017
The United States of America as Represented by the Administrator of National...
Jeffrey J DeMange
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR