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Chang Shen

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  • Acton, MA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ULTRASONIC FLOW METER
    • Publication number 20210325216
    • Publication date Oct 21, 2021
    • Spire Metering Technology LLC
    • Chang Shen
    • G01 - MEASURING TESTING
  • Information Patent Application

    FLOW METER
    • Publication number 20210223077
    • Publication date Jul 22, 2021
    • Spire Metering Technology LLC
    • Tianshui Liu
    • G01 - MEASURING TESTING
  • Information Patent Application

    ULTRASONIC FLOW METER
    • Publication number 20210048325
    • Publication date Feb 18, 2021
    • Spire Metering Technology LLC
    • Tianshui Liu
    • G01 - MEASURING TESTING
  • Information Patent Application

    AUTOMATIC METER READING SYSTEM
    • Publication number 20210033423
    • Publication date Feb 4, 2021
    • Spire Metering Technology LLC
    • Chang Shen
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    INSERTION TYPE ULTRASONIC FLOW METER, FLOW MEASURING SYSTEM AND METHOD
    • Publication number 20200149940
    • Publication date May 14, 2020
    • Spire Metering Technology LLC
    • Chang Shen
    • G01 - MEASURING TESTING
  • Information Patent Application

    DEVICE AND METHOD FOR MEASUREMENT OF ULTRASONIC TRANSIT TIMES
    • Publication number 20190323878
    • Publication date Oct 24, 2019
    • Spire Metering Technology LLC
    • Chang Shen
    • G01 - MEASURING TESTING
  • Information Patent Application

    DEVICE AND METHOD FOR MEASUREMENT OF ULTRASONIC TRANSIT TIMES
    • Publication number 20140096586
    • Publication date Apr 10, 2014
    • Spire Metering Technology LLC
    • Chang Shen
    • G01 - MEASURING TESTING
  • Information Patent Application

    Ultrasonic flow sensor
    • Publication number 20130180342
    • Publication date Jul 18, 2013
    • Spire Metering Technology LLC
    • Chang Shen
    • G01 - MEASURING TESTING