Patents by Inventor John Andrew McIntosh

John Andrew McIntosh 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).

  • Geopolymeric structural building units and methods of manufacture thereof
    Patent number: 9126865
    Abstract: The present invention provides a geopolymeric cement formed from a precursor having a relatively high alumina content (Si:Al atomic ratio of less than or equal to 1.3:1) to form an alkaline multiphase alumino-silicate material. The precursor comprises basaltic rock in which kaolinization is at an advanced stage, preferably Interbasaltic material found in Northern Ireland. The present invention also provides structural units for constructing a building, the structural units being manufactured using the geopolymeric cement of the invention. The invention also provides a process for producing a geopolymeric cement comprising a precursor having a relatively high alumina content (Si:Al atomic ratio of less than or equal to 1.3:1) to form an alkaline alumino-silicate geopolymer material for manufacturing geopolymeric structural building units having compressive strengths of greater than 3 N/mm2 and preferably having compressive strengths in the range of 12-25 N/mm2.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: September 8, 2015
    Inventors: John McIlvenna Blackstock, James Neill, John Andrew McIntosh
  • GEOPOLYMERIC STRUCTURAL BUILDING UNITS AND METHODS OF MANUFACTURE THEREOF
    Publication number: 20120260594
    Abstract: The present invention provides a geopolymeric cement formed from a precursor having a relatively high alumina content (Si:Al atomic ratio of less than or equal to 1.3:1) to form an alkaline multiphase alumino-silicate material. The precursor comprises basaltic rock in which kaolinization is at an advanced stage, preferably Interbasaltic material found in Northern Ireland. The present invention also provides structural units for constructing a building, the structural units being manufactured using the geopolymeric cement of the invention. The invention also provides a process for producing a geopolymeric cement comprising a precursor having a relatively high alumina content (Si:Al atomic ratio of less than or equal to 1.3:1) to form an alkaline alumino-silicate geopolymer material for manufacturing geopolymeric structural building units having compressive strengths of greater than 3 N/mm2 and preferably having compressive strengths in the range of 12-25 N/mm2.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 18, 2012
    Inventors: Jonh McIlvenna Blackstock, James Neill, John Andrew McIntosh