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Curtis William Johnson
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Carson City, NV, US
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last 30 patents
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Patent Grant
Variable geometry nozzle with flexible side wall
Patent number
7,062,901
Issue date
Jun 20, 2006
Sierra Engineering Incorporated
Curtis William Johnson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Patent Grant
Supersonic revolving nozzle
Patent number
6,981,365
Issue date
Jan 3, 2006
Sierra Engineering Incorporated
Curtis William Johnson
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS