TREA

William B. Dawson

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  • Medina, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Veneers for walls, retaining walls and the like
    • Patent number 8,511,024
    • Issue date Aug 20, 2013
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Column block system
    • Patent number 8,464,491
    • Issue date Jun 18, 2013
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Retaining wall block with face connection
    • Patent number 8,434,971
    • Issue date May 7, 2013
    • Contech Technologies, Inc.
    • William B. Dawson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Retaining wall block
    • Patent number 8,132,988
    • Issue date Mar 13, 2012
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Mold box for making first and second wall blocks
    • Patent number 7,780,141
    • Issue date Aug 24, 2010
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Column block system
    • Patent number 7,641,178
    • Issue date Jan 5, 2010
    • Keystone Retaining Wall Systems, Inc.
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Wall block
    • Patent number D501935
    • Issue date Feb 15, 2005
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Retaining wall block system and connector
    • Patent number 6,821,058
    • Issue date Nov 23, 2004
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Landscaping block
    • Patent number D488569
    • Issue date Apr 13, 2004
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D479342
    • Issue date Sep 2, 2003
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Retaining wall block
    • Patent number D430308
    • Issue date Aug 29, 2000
    • Keystone Retaining Wall Systems
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Plantable retaining wall block
    • Patent number 5,913,790
    • Issue date Jun 22, 1999
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • E04 - BUILDING
  • Information Patent Grant

    Retaining wall block and wall construction
    • Patent number 5,865,006
    • Issue date Feb 2, 1999
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Landscaping block
    • Patent number D397808
    • Issue date Sep 1, 1998
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number 5,771,631
    • Issue date Jun 30, 1998
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Front face of a plantable retaining wall block
    • Patent number D387434
    • Issue date Dec 9, 1997
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • D25 - Building units and construction elements
  • Information Patent Grant

    Plantable retaining wall
    • Patent number 5,601,384
    • Issue date Feb 11, 1997
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Landscaping block system
    • Patent number 5,588,262
    • Issue date Dec 31, 1996
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Landscaping block
    • Patent number 5,568,994
    • Issue date Oct 29, 1996
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

  • Information Patent Application

    RETAINING WALL BLOCK WITH FACE CONNECTION
    • Publication number 20120183362
    • Publication date Jul 19, 2012
    • KEYSTONE RETAINING WALL SYSTEMS LLC
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    METHOD OF MAKING WALL BLOCKS
    • Publication number 20120131873
    • Publication date May 31, 2012
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    WALL BLOCK
    • Publication number 20100281809
    • Publication date Nov 11, 2010
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    COLUMN BLOCK SYSTEM
    • Publication number 20100064620
    • Publication date Mar 18, 2010
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    VENEERS FOR WALLS, RETAINING WALLS AND THE LIKE
    • Publication number 20090313936
    • Publication date Dec 24, 2009
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • Robert A. MacDonald
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    METHOD OF MAKING A RETAINING WALL USING WALL BLOCKS AND GEOGRID
    • Publication number 20090304459
    • Publication date Dec 10, 2009
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • Robert A. MacDonald
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    COLUMNAR BLOCK FENCE SYSTEM
    • Publication number 20080172970
    • Publication date Jul 24, 2008
    • KEYSTONE RETAINING WALL SYSTEMS, INC.
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Retaining wall block with face connection
    • Publication number 20060110223
    • Publication date May 25, 2006
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    Veneers for walls, retaining walls and the like
    • Publication number 20050252144
    • Publication date Nov 17, 2005
    • Robert A. MacDonald
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Wall block system
    • Publication number 20050252145
    • Publication date Nov 17, 2005
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Column block system
    • Publication number 20050252146
    • Publication date Nov 17, 2005
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Columnar block fence system
    • Publication number 20050252147
    • Publication date Nov 17, 2005
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Composite capping block
    • Publication number 20050242468
    • Publication date Nov 3, 2005
    • Robert A. MacDonald
    • B44 - DECORATIVE ARTS
  • Information Patent Application

    Method of making wall block
    • Publication number 20050016106
    • Publication date Jan 27, 2005
    • William B. Dawson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    Landscaping block
    • Publication number 20040088929
    • Publication date May 13, 2004
    • Keystone Retaining Wall Systems, Inc.
    • William B. Dawson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING