Patents by Inventor Sheldon Verrett

Sheldon Verrett 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).

  • Method for the production of improved pulp
    Publication number: 20060144533
    Abstract: Compositions and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compound or mixtures thereof is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.
    Type: Application
    Filed: March 3, 2006
    Publication date: July 6, 2006
    Inventors: Jacob Thompson, Sheldon Verrett, Wei Li, Ulrike Tschimer
  • Method for inhibiting calcium salt scale
    Publication number: 20050126727
    Abstract: Compositions and method of improving inhibition of calcium salt scale formation under the conditions found in chemical pulp processes in which an effective amount of selected phosphonates or phosphonate blends is admixed with the black liquor composition recovered from the digester in a chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.
    Type: Application
    Filed: January 26, 2005
    Publication date: June 16, 2005
    Inventors: Jacob Thompson, Sheldon Verrett, Jeremy Loy, Steven Severtson
  • Method for the production of improved pulp
    Publication number: 20050115692
    Abstract: Compositions and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compound or mixtures thereof is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.
    Type: Application
    Filed: January 7, 2005
    Publication date: June 2, 2005
    Inventors: Jacob Thompson, Sheldon Verrett, Wei Li, Ulrike Tschimer