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Robert John Lundell

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  • Stillwater, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Retaining wall block and retaining wall block system
    • Patent number 11,598,094
    • Issue date Mar 7, 2023
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Patio blocks and block systems with side surface positioning and re...
    • Patent number 11,060,305
    • Issue date Jul 13, 2021
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Veneer connectors, wall blocks, veneer panels for wall blocks, and...
    • Patent number 10,760,281
    • Issue date Sep 1, 2020
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Retaining wall block and retaining wall block system
    • Patent number 10,760,269
    • Issue date Sep 1, 2020
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E04 - BUILDING
  • Information Patent Grant

    Patio blocks and block systems with side surface positioning and re...
    • Patent number 10,655,340
    • Issue date May 19, 2020
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Patio blocks and block systems with side surface positioning and re...
    • Patent number 10,370,859
    • Issue date Aug 6, 2019
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Insulated concrete masonry system
    • Patent number 10,301,820
    • Issue date May 28, 2019
    • Oldcastle Architectural, Inc.
    • Leonard Browning
    • E04 - BUILDING
  • Information Patent Grant

    Wall block
    • Patent number D846760
    • Issue date Apr 23, 2019
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Veneer connectors, wall blocks, veneer panels for wall blocks, and...
    • Patent number 10,156,077
    • Issue date Dec 18, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Insulated concrete masonry system
    • Patent number 10,087,623
    • Issue date Oct 2, 2018
    • Oldcastle Achitectural, Inc.
    • Leonard Browning
    • E04 - BUILDING
  • Information Patent Grant

    Paving stones
    • Patent number 10,081,918
    • Issue date Sep 25, 2018
    • Oldcastle Architectural, Inc.
    • Leonard Browning
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Landscaping block
    • Patent number D824542
    • Issue date Jul 31, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D819231
    • Issue date May 29, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D816869
    • Issue date May 1, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Patio blocks and block systems with side surface positioning and re...
    • Patent number 9,951,527
    • Issue date Apr 24, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • E04 - BUILDING
  • Information Patent Grant

    Connector
    • Patent number D815938
    • Issue date Apr 24, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • D08 - Tools and hardware
  • Information Patent Grant

    Connector
    • Patent number D814911
    • Issue date Apr 10, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • D08 - Tools and hardware
  • Information Patent Grant

    Connector
    • Patent number D814278
    • Issue date Apr 3, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • D08 - Tools and hardware
  • Information Patent Grant

    Block splitter assembly and method of producing wall blocks
    • Patent number 9,925,692
    • Issue date Mar 27, 2018
    • Keystone Retaining Wall Systems LLC
    • David M. LaCroix
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Wall block
    • Patent number D812781
    • Issue date Mar 13, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert A. MacDonald
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D809673
    • Issue date Feb 6, 2018
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Paving stones
    • Patent number 9,840,813
    • Issue date Dec 12, 2017
    • Oldcastle Architectural, Inc.
    • Leonard Browning
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Insulated concrete masonry system
    • Patent number 9,834,925
    • Issue date Dec 5, 2017
    • Oldcastle Architectural, Inc.
    • Leonard Browning
    • E04 - BUILDING
  • Information Patent Grant

    Mould filling method
    • Patent number 9,808,957
    • Issue date Nov 7, 2017
    • Oldcastle Architectural, Inc.
    • Ronald J. Scherer
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Landscaping block
    • Patent number D791345
    • Issue date Jul 4, 2017
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D789556
    • Issue date Jun 13, 2017
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D789558
    • Issue date Jun 13, 2017
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscaping block
    • Patent number D789555
    • Issue date Jun 13, 2017
    • Keystone Retaining Wall Systems LLC
    • Robert John Lundell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscape edger
    • Patent number D782703
    • Issue date Mar 28, 2017
    • Keystone Retaining Wall Systems LLC
    • Thomas S. Riccobene
    • D25 - Building units and construction elements
  • Information Patent Grant

    Landscape edger
    • Patent number D782704
    • Issue date Mar 28, 2017
    • Keystone Retaining Wall Systems LLC
    • Thomas S. Riccobene
    • D25 - Building units and construction elements

Patents Applicationslast 30 patents