Patents by Inventor David G. Charlton

David G. Charlton 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).

  • MULTIFUNCTIONAL ACRYLATES USED AS CROSS-LINKERS IN DENTAL AND BIOMEDICAL SELF-ETCHING BONDING ADHESIVES
    Publication number: 20120003611
    Abstract: This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and/or light-activated free-radical initiators.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 5, 2012
    Inventors: James C. Ragain, JR., Amer Tiba, David G. Charlton
  • Multifunctional acrylates used as cross-linkers in dental and biomedical self-etching bonding adhesives
    Patent number: 8053487
    Abstract: This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and/or light-activated free-radical initiators.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: November 8, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James C. Ragain, Jr., Amer Tiba, David G. Charlton
  • MULTIFUNCTIONAL ACRYLATES USED AS CROSS-LINKERS IN DENTAL AND BIOMEDICAL SELF-ETCHING BONDING ADHESIVES
    Publication number: 20100197825
    Abstract: This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and/or light-activated free-radical initiators.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Inventors: James C. Ragain, JR., Amer Tiba, David G. Charlton
  • Interim dental dressing and restorative material
    Patent number: 7649028
    Abstract: The invention relates to a temporary dental formulation useful as a durable, temporary restorative. The formulation changes color during mixing to assist the operator in ensuring adequacy of mixing and enhancing visualization during placement.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: January 19, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Amer Tiba, David G. Charlton, James C. Ragain
  • Interim dental dressing and restorative material
    Publication number: 20070173559
    Abstract: The invention relates to a temporary dental formulation useful as a durable, temporary restorative. The formulation changes color during mixing to assist the operator in ensuring adequacy of mixing and enhancing visualization during placement.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Inventors: Amer Tiba, David G. Charlton, James C. Ragain