Patents by Inventor Robert E. Souerwine

Robert E. Souerwine 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).

  • Phosphonic acid derivative treatment of metallic flakes
    Patent number: 6863718
    Abstract: Metal pigment particles are treated with a product resulting from the reaction between an organic phosphonic acid with an amine having at least one organic group containing at least six carbon atoms to inhibit their reactivity to water. The treated metal particles can be used in coating and ink compositions. Additionally, the treated metal particles can be used to formulate pastes and dispersions that are provided to a coatings manufacturer.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: March 8, 2005
    Assignee: Silberline Manufacturing Co., Inc.
    Inventors: H. Taylor Lamborn, Robert E. Souerwine, Craig B. Keemer
  • Phosphonic acid derivative treatment of metallic flakes
    Publication number: 20030097957
    Abstract: Metal pigment particles are treated with a product resulting from the reaction between an organic phosphonic acid with an amine having at least one organic group containing at least six carbon atoms to inhibit their reactivity to water. The treated metal particles can be used in coating and ink compositions. Additionally, the treated metal particles can be used to formulate pastes and dispersions that are provided to a coatings manufacturer.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 29, 2003
    Applicant: Silberline Manufacturing Co., Inc.
    Inventors: H. Taylor Lamborn, Robert E. Souerwine, craig B. Keemer
  • Inhibited metal pigment pastes containing molybdate pigments and suitable for aqueous coating compositions
    Patent number: 5993523
    Abstract: Metal particles useful for coating compositions, particularly aqueous coating compositions, are produced by treating the metal particles with a molybdate pigment. The molybdate pigment reacts with the surface of the metal particles. The molybdate pigment may be a salt such as a molybdate, phosphomolybdate or silicomolybdate salt, and the salt may include a multivalent cation such as calcium, strontium, barium, magnesium, zinc and aluminum. The metal particles show improved resistance to attack by water.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 30, 1999
    Assignee: Silberline Manufacturing Co., Inc.
    Inventors: Craig B. Keemer, William G. Jenkins, H. Taylor Lamborn, Robert E. Souerwine