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Duane Logsdon

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  • Fullerton, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roof drain structure
    • Patent number 5,378,356
    • Issue date Jan 3, 1995
    • LSP Specialty Products Company
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Barrier mold for forming openings in concrete structures
    • Patent number 5,072,911
    • Issue date Dec 17, 1991
    • The Logsdon Foundation
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Movable fitting members for use with drain fittings
    • Patent number 5,072,461
    • Issue date Dec 17, 1991
    • The Logsdon Foundation
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Seal structures for flanges having bowed sealing surfaces
    • Patent number 5,052,726
    • Issue date Oct 1, 1991
    • Logsdon Foundation
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Drain grate with primary and secondary weirs
    • Patent number 4,961,848
    • Issue date Oct 9, 1990
    • Logsdon Foundation
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Pipe holders
    • Patent number 4,930,733
    • Issue date Jun 5, 1990
    • Logsdon Foundation
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tub boxes
    • Patent number 4,925,045
    • Issue date May 15, 1990
    • Logsdon Foundation
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Pipe holders
    • Patent number 4,903,921
    • Issue date Feb 27, 1990
    • Logsdon Foundation
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Washing machine connection boxes
    • Patent number 4,865,072
    • Issue date Sep 12, 1989
    • Duane Logsdon
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Pipe plugs
    • Patent number 4,768,560
    • Issue date Sep 6, 1988
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe hangers
    • Patent number 4,768,741
    • Issue date Sep 6, 1988
    • Duane D. Logsdon
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tub box
    • Patent number 4,742,585
    • Issue date May 10, 1988
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Fluid control valve
    • Patent number 4,611,626
    • Issue date Sep 16, 1986
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Miniature washing machine box
    • Patent number 4,564,249
    • Issue date Jan 14, 1986
    • Duane D. Logsdon
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Drain grate with adjustable weirs
    • Patent number 4,525,273
    • Issue date Jun 25, 1985
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Sump or flush installable roof drain
    • Patent number 4,487,690
    • Issue date Dec 11, 1984
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Roof vent
    • Patent number 4,484,424
    • Issue date Nov 27, 1984
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Pipe hanger capable of totally encircling a pipe
    • Patent number 4,442,994
    • Issue date Apr 17, 1984
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Expansion coupling for plastic pipe
    • Patent number D270935
    • Issue date Oct 11, 1983
    • Duane D. Logsdon
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Apparatus for securing pipe
    • Patent number 4,400,920
    • Issue date Aug 30, 1983
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Drain grate with adjustable weirs
    • Patent number 4,400,272
    • Issue date Aug 23, 1983
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Expansion coupling for large diameter plastic pipes
    • Patent number 4,350,372
    • Issue date Sep 21, 1982
    • Duane D. Logsdon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Roof flashings for use with solar collector
    • Patent number 4,280,305
    • Issue date Jul 28, 1981
    • The Logsdon Foundation
    • Duane D. Logsdon
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Roof flashing structures
    • Patent number 4,265,058
    • Issue date May 5, 1981
    • The Logsdon Foundation
    • Duane D. Logsdon
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Pipe test cap
    • Patent number D257057
    • Issue date Sep 23, 1980
    • Duane D. Logsdon
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Backflow preventer for sewer system
    • Patent number 4,215,724
    • Issue date Aug 5, 1980
    • The Logsdon Foundation
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Water closet protector stabilizer
    • Patent number 4,212,486
    • Issue date Jul 15, 1980
    • The Logsdon Foundation
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Roof flashing structure
    • Patent number 4,160,347
    • Issue date Jul 10, 1979
    • The Logsdon Foundation
    • Duane D. Logsdon
    • E04 - BUILDING
  • Information Patent Grant

    Washing machine outlet box
    • Patent number 4,158,471
    • Issue date Jun 19, 1979
    • The Logsdon Foundation
    • Duane D. Logsdon
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Check valve structure for use in drains
    • Patent number 4,088,149
    • Issue date May 9, 1978
    • Duane D. Logsdon
    • E03 - WATER SUPPLY SEWERAGE