TREA

Frederick L. Lau

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  • Skokie, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Environmental connector
    • Patent number 5,485,673
    • Issue date Jan 23, 1996
    • Switchcraft Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Slip resistant connective device
    • Patent number 5,098,317
    • Issue date Mar 24, 1992
    • Switchcraft Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Reinforced jack plug
    • Patent number 4,938,717
    • Issue date Jul 3, 1990
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Jackfield with front terminals
    • Patent number 4,874,317
    • Issue date Oct 17, 1989
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Self-latching lamp jack
    • Patent number 4,826,439
    • Issue date May 2, 1989
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Terminal contact assembly
    • Patent number 4,826,455
    • Issue date May 2, 1989
    • Switchcraft, Inc.
    • Arnold A. Case
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Slab-like jack module
    • Patent number 4,820,200
    • Issue date Apr 11, 1989
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Jack circuit board assembly
    • Patent number 4,797,114
    • Issue date Jan 10, 1989
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Jack module with lamp assembly
    • Patent number 4,784,609
    • Issue date Nov 15, 1988
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Jackfield with split front panel
    • Patent number 4,772,562
    • Issue date Sep 20, 1988
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Channelized jackfield
    • Patent number 4,770,639
    • Issue date Sep 13, 1988
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Jackfield with front removable jack modules having lamp assemblies
    • Patent number 4,768,961
    • Issue date Sep 6, 1988
    • Switchcraft, Inc.
    • Frederick L. Lau
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vibration protected switch
    • Patent number 4,609,795
    • Issue date Sep 2, 1986
    • Switchcraft, Inc.
    • Vernon W. Lavigne
    • H01 - BASIC ELECTRIC ELEMENTS