TREA

Ronald Joseph Fredricks

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  • Jenison, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Planetary rotary engine with rotary ring valves
    • Patent number 10,145,243
    • Issue date Dec 4, 2018
    • Planetary Rotor Engine Company
    • William Bennett Ribbens
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    PLANETARY ROTARY ENGINE WITH ROTARY RING VALVES
    • Publication number 20160281595
    • Publication date Sep 29, 2016
    • Planetary Rotor Engine Company
    • William Bennett Ribbens
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS