Patents by Inventor Lawrence S. Shapiro

Lawrence S. Shapiro 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).

  • Publication number: 20240150242
    Abstract: A three-part epoxy grout composition comprises a liquid epoxy blend, a liquid hardener, and a graded particulate aggregate, wherein the dry aggregate particles are pretreated with an applied adhesion promoter in an amount of 0.01 to 5% by weight. The volume of pretreated aggregate particles, when mixed with the epoxy blend and the hardener, comprises at least 70% by volume of the cured grout. Pretreatment of the aggregate by coating with adhesion promoter allows more efficient use of chemicals along with improved strength. Related methods are also disclosed.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 9, 2024
    Inventors: Lawrence S. Shapiro, Michael K. Harvey, Scott Atom Saverse, Douglas A. Cheney, Zbigniew Andrew Szczepaniak, Brandon Michael Belcher, Paul Matz, Timothy Patrick Fitzgerald, Shawn Thomas Noble
  • Patent number: 7257930
    Abstract: Exemplary methods and assemblies for preventing corrosion of metal connector devices, e.g., zinc-galvanized joist hangers and fasteners, used for assembling outdoor structures such as decks from wood components pretreated with alkaline copper quat (ACQ), ammoniacal copper quat (ACQ-B), copper azole (CA), or mixtures thereof. Membrane barriers separate metal from wood, and seal around fasteners thus minimizing corrosion of the connector devices and fasteners.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: August 21, 2007
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Antonio J. Aldykiewicz, Jr., Gerald L. Blay, Gregory N. Ciampa, Ann M. Jansen, Edwin C. Schaughency, Lawrence S. Shapiro, Albina N. Velikin, Walter W. Wydra