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Ralph S. Friedrich

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  • Wichita Falls, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fiber reinforced resin polymer mortar pole
    • Patent number 9,879,440
    • Issue date Jan 30, 2018
    • NOV NORTH AMERICA I/P, LLC
    • Ralph S. Friedrich
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Fiber reinforced resin polymer mortar pole
    • Patent number 9,057,204
    • Issue date Jun 16, 2015
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mortar-coated steel pipes and methods of making the same
    • Patent number 8,944,114
    • Issue date Feb 3, 2015
    • Ameron International Corporation
    • Richard I. Mueller
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure cast concrete or mortar lined steel pipes and methods of m...
    • Patent number 8,627,854
    • Issue date Jan 14, 2014
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Pressure cast concrete or mortar lined steel pipes and methods of m...
    • Patent number 8,069,880
    • Issue date Dec 6, 2011
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method for forming double containment pipeline sections
    • Patent number 7,166,177
    • Issue date Jan 23, 2007
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sewer pipe section
    • Patent number 6,920,900
    • Issue date Jul 26, 2005
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Abrasion resistant pipe
    • Patent number 6,737,134
    • Issue date May 18, 2004
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Closure for secondary containment pipe
    • Patent number 6,626,467
    • Issue date Sep 30, 2003
    • Ameron International Corporation
    • Joie L. Folkers
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bonding of steel strips in steel strip laminate pipe
    • Patent number 6,273,143
    • Issue date Aug 14, 2001
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Double containment pipe sections
    • Patent number 6,026,862
    • Issue date Feb 22, 2000
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Helically formed welded pipe and diameter control
    • Patent number 5,957,366
    • Issue date Sep 28, 1999
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Double containment pipe mechanical joints
    • Patent number 5,934,712
    • Issue date Aug 10, 1999
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fire resistant pipe
    • Patent number 5,799,705
    • Issue date Sep 1, 1998
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High-pressure fiber reinforced composite pipe joint
    • Patent number 5,785,092
    • Issue date Jul 28, 1998
    • Ameron International Corporation
    • Ralph Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fire resistant pipe
    • Patent number 5,758,694
    • Issue date Jun 2, 1998
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fiber-reinforced resin pipe having improved impact resistance
    • Patent number 5,725,920
    • Issue date Mar 10, 1998
    • Ameron International Corporation
    • Ralph S. Friedrich
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Fire resistant sprinkler coupling
    • Patent number 5,716,077
    • Issue date Feb 10, 1998
    • Ameron International Corporation
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High-pressure fiber reinforced composite pipe joint
    • Patent number 5,520,422
    • Issue date May 28, 1996
    • Ameron, Inc.
    • Ralph Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Prestress wire splicing apparatus
    • Patent number 5,251,421
    • Issue date Oct 12, 1993
    • Ameron, Inc.
    • Ralph S. Friedrich
    • E04 - BUILDING
  • Information Patent Grant

    Fiber reinforced plastic pipe tee
    • Patent number 4,601,496
    • Issue date Jul 22, 1986
    • Ameron, Inc.
    • Ronald G. Ulrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fiber reinforced plastic pipe tee
    • Patent number 4,601,770
    • Issue date Jul 22, 1986
    • Ameron, Inc.
    • Ronald G. Ulrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Filament winding of plastic articles
    • Patent number 4,557,788
    • Issue date Dec 10, 1985
    • Ameron, Inc.
    • William R. Dana
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for winding fiber reinforced pipe fittings
    • Patent number 4,511,423
    • Issue date Apr 16, 1985
    • Ameron, Inc.
    • Gerald M. Magarian
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Fiber reinforced plastic pipe tee
    • Patent number 4,506,918
    • Issue date Mar 26, 1985
    • Ameron, Inc.
    • Ralph S. Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Winding fiber reinforced pipe fittings
    • Patent number 4,437,616
    • Issue date Mar 20, 1984
    • Ameron, Inc.
    • Gerald M. Magarian
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mandrel for filament winding of plastic articles
    • Patent number 4,384,913
    • Issue date May 24, 1983
    • Ameron, Inc.
    • William R. Dana
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Filament winding of plastic articles
    • Patent number 4,323,408
    • Issue date Apr 6, 1982
    • Ameron, Inc.
    • William R. Dana
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents