TREA

John Albert Umina

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  • Waltham, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Acoustic waveguide assemblies
    • Patent number 8,746,399
    • Issue date Jun 10, 2014
    • General Electric Company
    • Xiaolei Shirley Ao
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Flow cell for a flow meter
    • Patent number D705102
    • Issue date May 20, 2014
    • General Electric Company
    • Benjamin Edward McDonald
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Acoustic waveguide assemblies
    • Patent number 8,511,424
    • Issue date Aug 20, 2013
    • General Electric Company
    • Xiaolei Shirley Ao
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Ultrasonic flow meter system
    • Patent number 7,581,453
    • Issue date Sep 1, 2009
    • General Electric Company
    • Xiaolei Shirley Ao
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ultrasonic flow rate measurement method and system
    • Patent number 7,523,676
    • Issue date Apr 28, 2009
    • General Electric Company
    • Xue-Song Scott Li
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Device and apparatus for holding a transducer
    • Patent number 7,247,979
    • Issue date Jul 24, 2007
    • GE Security, Inc.
    • John A. Umina
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents