Patents by Inventor James C. Ragain, Jr.

James C. Ragain, Jr. 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
  • Rapid immunoassay of anthrax protective antigen in vaccine cultures and bodily fluids by fluorescence polarization
    Patent number: 7504202
    Abstract: The inventive subject matter relates to a competitive method for estimating the concentration in a sample of a Bacillus anthracis protein or antibody thereof selected from the group consisting of protective antigen (PA), lethal factor (LF) and edema factor (EF). The method may employ the use of Fluorescence Polarization, FLT or FRET. The competitive methods are capable of detecting a target protein within 5 minutes within the range of 0.1 to 10.0 nM. The methods provide for the rapid detection and quantitation of bacteria, bacterial antigen or antibody in culture media or broth of growing cultures of bacteria, including B. anthracis by fluorescent methods.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: March 17, 2009
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Malford E. Cullum, Paul Hine, Lloyd G. Simonson, Chun N. Shih, Diane R. Bienek, Sukjoon Park, James C. Ragain, Jr., Linda A. Lininger