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David Perez

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  • San Diego, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic voting system
    • Patent number 8,905,306
    • Issue date Dec 9, 2014
    • American Radio LLC
    • Robert Hotto
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Electronic voting system
    • Patent number 8,201,738
    • Issue date Jun 19, 2012
    • Energyield, LLC
    • Robert Hotto
    • G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC VOTING SYSTEM
    • Publication number 20130144686
    • Publication date Jun 6, 2013
    • ENERGYIELD, LLC
    • Robert Hotto
    • G07 - CHECKING-DEVICES
  • Information Patent Application

    Electronic voting system
    • Publication number 20070241190
    • Publication date Oct 18, 2007
    • Robert Hotto
    • G07 - CHECKING-DEVICES