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William N. Youstra

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  • Portola Valley, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Authentication of electronic data
    • Patent number 8,862,677
    • Issue date Oct 14, 2014
    • Google Inc.
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Authentication of electronic data
    • Patent number 8,335,834
    • Issue date Dec 18, 2012
    • Marathon Solutions LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Authentication of electronic data
    • Patent number 8,082,311
    • Issue date Dec 20, 2011
    • AOL LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Authentication of electronic data
    • Patent number 7,571,234
    • Issue date Aug 4, 2009
    • AOL LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Authentication of Electronic Data
    • Publication number 20130198812
    • Publication date Aug 1, 2013
    • MARATHON SOLUTIONS LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    AUTHENTICATION OF ELECTRONIC DATA
    • Publication number 20120096100
    • Publication date Apr 19, 2012
    • AOL LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    AUTHENTICATION OF ELECTRONIC DATA
    • Publication number 20100094942
    • Publication date Apr 15, 2010
    • AOL LLC
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Authentication of electronic data
    • Publication number 20020013902
    • Publication date Jan 31, 2002
    • William N. Youstra
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE