Patents by Inventor Laurand Henry Lewandowski

Laurand Henry Lewandowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • POLYMER MODIFIED ASPHALT ROOFING MATERIAL
    Publication number: 20190186143
    Abstract: A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 20, 2019
    Inventors: Carmen Anthony LaTorre, Jacob Paul Honsvick, Christopher Patrick Kasprzak, Daniel James Buckwalter, Edward R. Harrington, Jonathan Ross Davis, Laurand Henry Lewandowski, David Michael Ploense, William Edwin Smith, Scott W. Schweiger
  • POLYMER MODIFIED ASPHALT ROOFING MATERIAL
    Publication number: 20190186140
    Abstract: A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 20, 2019
    Inventors: Carmen Anthony LaTorre, Jacob Paul Honsvick, Christopher Patrick Kasprzak, Daniel James Buckwalter, Edward R. Harrington, Jonathan Ross Davis, Laurand Henry Lewandowski, David Michael Ploense, William Edwin Smith, Scott W. Schweiger
  • POLYMER MODIFIED ASPHALT ROOFING MATERIAL
    Publication number: 20190185712
    Abstract: A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 20, 2019
    Inventors: Carmen Anthony LaTorre, Jacob Paul Honsvick, Christopher Patrick Kasprzak, Daniel James Buckwalter, Edward R. Harrington, Jonathan Ross Davis, Laurand Henry Lewandowski, David Michael Ploense, William Edwin Smith, Scott W. Schweiger
  • SBR for asphalt cement modification
    Patent number: 6136899
    Abstract: It has been determined that a specific type of emulsion SBR can be used to modify asphalt cement to greatly enhance the resistance to shoving, rutting and low temperature cracking of asphalt concretes made therewith. It has further been determined that this emulsion SBR is compatible with virtually all types of asphalt and that modified asphalt cements made therewith have extremely high levels of force ductility, tenacity and toughness.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: October 24, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Laurand Henry Lewandowski, Daniel Frederick Klemmensen