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David Andersen

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  • Dillon, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Messaging devices and methods
    • Patent number 11,838,785
    • Issue date Dec 5, 2023
    • American Messaging Services, Inc.
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 11,412,402
    • Issue date Aug 9, 2022
    • American Messaging Services, Inc.
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 10,681,581
    • Issue date Jun 9, 2020
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 10,051,505
    • Issue date Aug 14, 2018
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 9,743,308
    • Issue date Aug 22, 2017
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 9,608,680
    • Issue date Mar 28, 2017
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Messaging devices and methods
    • Patent number 8,841,989
    • Issue date Sep 23, 2014
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20240107357
    • Publication date Mar 28, 2024
    • American Messaging Services, Inc.
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20220353726
    • Publication date Nov 3, 2022
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20200260314
    • Publication date Aug 13, 2020
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20180343579
    • Publication date Nov 29, 2018
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20170374576
    • Publication date Dec 28, 2017
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20170150389
    • Publication date May 25, 2017
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MESSAGING DEVICES AND METHODS
    • Publication number 20140220960
    • Publication date Aug 7, 2014
    • American Messaging Services, LLC
    • John F. Nagel
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRONIC EMERGENCY MESSAGING SYSTEM
    • Publication number 20110313770
    • Publication date Dec 22, 2011
    • J. Roy Pottle
    • G08 - SIGNALLING