Patents by Inventor Paulette Spencer

Paulette Spencer 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).

  • Patent number: 10501562
    Abstract: The present disclosure relates to tertiary amine co-initiators that demonstrate reduced leaching and which may be utilized in dental restoration and other biomedical applications. Embodiments of the present disclosure provide compounds and compositions for use in preparing polymers and light curable dental resin composites, as well as methods for preparing photocurable polymer-based dental restorative materials. In one or more disclosed embodiments, a co-initiator for use in preparing a polymer comprises a tertiary amine core and two or more pendant, terminal methacrylate groups. In some embodiments, the co-initiator may also act as a co-monomer in a co-polymerization reaction.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 10, 2019
    Assignee: UNIVERSITY OF KANSAS
    Inventors: Xueping Ge, Qiang Ye, Paulette Spencer, Jennifer Ann Chadwick, Linyong Song
  • Publication number: 20180016365
    Abstract: The present disclosure relates to tertiary amine co-initiators that demonstrate reduced leaching and which may be utilized in dental restoration and other biomedical applications. Embodiments of the present disclosure provide compounds and compositions for use in preparing polymers and light curable dental resin composites, as well as methods for preparing photocurable polymer-based dental restorative materials. In one or more disclosed embodiments, a co-initiator for use in preparing a polymer comprises a tertiary amine core and two or more pendant, terminal methacrylate groups. In some embodiments, the co-initiator may also act as a co-monomer in a co-polymerization reaction.
    Type: Application
    Filed: March 17, 2016
    Publication date: January 18, 2018
    Inventors: Xueping GE, Qiang YE, Paulette SPENCER, Jennifer Ann CHADWICK
  • Patent number: 8344041
    Abstract: A novel monomer, 1,1,1-tri-[4-(methacryloxyethylaminocarbonyloxy)-phenyl]ethane (MPE) can be used in preparing dental compositions The MPE monomer can be combined into a dental adhesive with hydroxyethyl methacrylate (HEMA) and BisGMA (bisphenol A dimethacrylate). The MPE polymer can be polymerized with a photoinitiator system, such as a system that includes an iodonium salt. The iodonium salt can be diphenyliodonium hexafluorophosphate.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 1, 2013
    Assignee: University of Kansas
    Inventors: Jonggu Park, Paulette Spencer, Elizabeth Murphy Topp, Qiang Ye
  • Publication number: 20090247660
    Abstract: A novel monomer, 1,1,1-tri-[4-(methacryloxyethylaminocarbonyloxy)-phenyl]ethane (MPE) can be used in preparing dental compositions The MPE monomer can be combined into a dental adhesive with hydroxyethyl methacrylate (HEMA) and BisGMA (bisphenol A dimethacrylate). The MPE polymer can be polymerized with a photoinitiator system, such as a system that includes an iodonium salt. The iodonium salt can be diphenyliodonium hexafluorophosphate.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 1, 2009
    Inventors: Jonggu Park, Paulette Spencer, Elizabeth Murphy Topp, Qiang Ye