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Richard B. Ravitts

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  • Rockford, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diving bell submersible seal
    • Patent number 5,855,472
    • Issue date Jan 5, 1999
    • Richard B. Ravitts
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Floating pumping device
    • Patent number 4,089,620
    • Issue date May 16, 1978
    • Riga, Inc.
    • Richard B. Ravitts
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...