Patents by Inventor Richard Charles Hoy

Richard Charles Hoy 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).

  • Process for preparing polysaccharides with alkyl-aryl hydrophobes and latex compositions containing same
    Patent number: 6372902
    Abstract: Polysaccharides, including hydroxyethyl cellulose, having alkyl-aryl hydrophobic substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved processes for producing such polysaccharides are also provided.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: April 16, 2002
    Assignee: Union Carbide Corporation
    Inventors: Emmett Malone Partain, III, George Lewis Brode, II, Richard Charles Hoy
  • Polysaccharides with alkyl-aryl hydrophobes and latex compositions containing same
    Patent number: 6372901
    Abstract: Polysaccharides, including hydroxyethyl cellulose, having alkyl-aryl hydrophobic substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved processes for producing such polysaccharides are also provided.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 16, 2002
    Assignee: Union Carbide Corporation
    Inventors: Emmett Malone Partain, III, George Lewis Brode, II, Richard Charles Hoy
  • Method for treating contaminated surface with aldehyde-based surfactant
    Patent number: 6306249
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component aldehyde and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: October 23, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Methods of cleaning fabrics with splittable aldehyde-based surfactants
    Patent number: 6051035
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component aldehyde and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: April 18, 2000
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Aldehyde-based surfactant and method for treating industrial commercial and institutional waste-water
    Patent number: 5919372
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component aldehyde and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: July 6, 1999
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Ketone-based surfactant and method for treating industrial, commercial, and institutional waste-water
    Patent number: 5851434
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component ketone and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Aldehyde-based surfactant and method for treating industrial, commercial, and institutional waste-water
    Patent number: 5744065
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component aldehyde and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 28, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda
  • Ketone-based surfactant and method for treating industrial, commerical, and institutional waste-water
    Patent number: 5744064
    Abstract: A nonionic surfactant having cyclic 1,3-dioxane and/or 1,3-dioxolane functionality which is irreversibly splittable by lowering the pH of its aqueous solution is useful in various processes requiring the removal of emulsified hydrophobic contaminants or other hydrophobic materials from an aqueous stream. After splitting of the surfactant into its component ketone and polyol, the hydrophobic components phase-separate and can be removed from the aqueous stream by routine means.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 28, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Denise Christine Galante, Richard Charles Hoy, Albert Ferris Joseph, Stephen Wayne King, Charles Arnold Smith, Cheryl Marie Wizda