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David Stark

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  • Lakeville, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Secure electronic cash-less payment systems and methods
    • Patent number 9,727,850
    • Issue date Aug 8, 2017
    • Forward Pay Systems, Inc.
    • Verne Severson
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Data exchange tool
    • Patent number 7,925,675
    • Issue date Apr 12, 2011
    • Stark Consulting Group, Inc.
    • David Stark
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Data exchange tool
    • Patent number 7,337,192
    • Issue date Feb 26, 2008
    • David Stark
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    SECURE ELECTRONIC CASH-LESS PAYMENT SYSTEMS AND METHODS
    • Publication number 20110238581
    • Publication date Sep 29, 2011
    • Verne Severson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DATA EXCHANGE TOOL
    • Publication number 20080189322
    • Publication date Aug 7, 2008
    • David Stark
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Data exchange tool
    • Publication number 20060074944
    • Publication date Apr 6, 2006
    • David Stark
    • G06 - COMPUTING CALCULATING COUNTING