TREA

Samuel Justin Welch

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  • Englewood, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tensioning system for vibrating membranes
    • Patent number 11,081,092
    • Issue date Aug 3, 2021
    • WELCH TUNING SYSTEMS, INC.
    • Samuel Justin Welch
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Tensioning system for vibrating membranes
    • Patent number 10,714,062
    • Issue date Jul 14, 2020
    • WELCH TUNING SYSTEMS, INC.
    • Samuel Justin Welch
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Drum head tensioning bracket
    • Patent number D889534
    • Issue date Jul 7, 2020
    • WELCH TUNING SYSTEMS, INC.
    • Samuel Justin Welch
    • D17 - Musical instruments
  • Information Patent Grant

    Drum hoop bracket
    • Patent number D875172
    • Issue date Feb 11, 2020
    • WELCH TUNING SYSTEMS, INC.
    • Samuel Justin Welch
    • D17 - Musical instruments
  • Information Patent Grant

    Drum claw
    • Patent number D875171
    • Issue date Feb 11, 2020
    • WELCH TUNING SYSTEMS, INC.
    • Samuel Justin Welch
    • D17 - Musical instruments
  • Information Patent Grant

    Tunable vibrating membrane tensioning system
    • Patent number 9,613,602
    • Issue date Apr 4, 2017
    • Samuel Justin Welch
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents