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Richard Caldwell

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  • Omaha, NE, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    SIMULTANEOUS COMBINED-CYCLE MULTI-STAGE COMBUSTION ENGINE
    • Publication number 20210180507
    • Publication date Jun 17, 2021
    • Richard Caldwell
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Angled Candle
    • Publication number 20180320889
    • Publication date Nov 8, 2018
    • Richard Caldwell
    • F21 - LIGHTING