Patents by Inventor Louis J. Sharp

Louis J. Sharp 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: 6994551
    Abstract: Stable self-etching copolymerizable primer compositions are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 7, 2006
    Assignee: Bisco, Inc.
    Inventors: Yantong J. Wang, Byoung I. Suh, Martin Hamer, Louis J. Sharp, Aleksandra Strukowska
  • Publication number: 20030186196
    Abstract: Self-etching copolymerizable primer compositions including are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.
    Type: Application
    Filed: February 14, 2002
    Publication date: October 2, 2003
    Inventors: Yantong J. Wang, Byoung I. Suh, Martin Hamer, Louis J. Sharp, Aleksandra Strukowska
  • Publication number: 20030171450
    Abstract: Stable self-etching copolymerizable primer compositions including are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.
    Type: Application
    Filed: February 14, 2003
    Publication date: September 11, 2003
    Inventors: Yantong J. Wang, Byoung I. Suh, Martin Hamer, Louis J. Sharp, Aleksandra Strukowska
  • Patent number: 5795933
    Abstract: A waterborne coating composition for metal substrates comprising (a) a formaldehyde-containing resin, and (b) a formaldehyde scavenger consisting essentially of an organic compound having at least one active methylene hydrogen and a pKa of about 5 to about 13, wherein the formaldehyde scavenger is present in a sufficient amount to maintain the concentration of free formaldehyde in the composition at less than 0.1% by weight.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: August 18, 1998
    Assignee: The Dexter Corporation
    Inventors: Louis J. Sharp, Hilda R. Dimaano