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Carl Leijonhufvud

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  • Uppsala, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for establishing a call
    • Patent number 8,023,629
    • Issue date Sep 20, 2011
    • Ab Aurora Invest
    • Carl Leijonhufvud
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Call queue handling
    • Patent number 6,856,677
    • Issue date Feb 15, 2005
    • Ab Aurora Invest
    • Carl Leijonhufvud
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR ESTABLISHING A CALL
    • Publication number 20090196409
    • Publication date Aug 6, 2009
    • Carl Leijonhufvud
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Call queue handling
    • Publication number 20040066928
    • Publication date Apr 8, 2004
    • Carl Leijonhufvud
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE