TREA

Harry F. Chapell

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  • Maynard, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microwave coupler
    • Patent number 5,148,132
    • Issue date Sep 15, 1992
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multi-position switch
    • Patent number 4,779,066
    • Issue date Oct 18, 1988
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Microwave apparatus
    • Patent number 4,755,778
    • Issue date Jul 5, 1988
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Microwave coupler
    • Patent number 4,641,111
    • Issue date Feb 3, 1987
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Microwave coupler
    • Patent number 4,547,753
    • Issue date Oct 15, 1985
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Waveguide low pass filter
    • Patent number 3,949,327
    • Issue date Apr 6, 1976
    • Sage Laboratories, Inc.
    • Harry F. Chapell
    • H01 - BASIC ELECTRIC ELEMENTS