Patents Assigned to Grancrete, Inc.
  • RADIATION SHIELDING STRUCTURE COMPOSITION
    Publication number: 20140061542
    Abstract: Radiation structures formed from a composition including calcium silicate, magnesium or calcium oxides and an acid phosphate are provided. The composition may also include fly ash or kaolin.
    Type: Application
    Filed: December 14, 2012
    Publication date: March 6, 2014
    Applicant: Grancrete, Inc.
    Inventor: Grancrete, Inc.
  • Heat resistant phosphate cement
    Patent number: 8409711
    Abstract: An article of manufacture including reinforcement material embedded in a phosphate cement composition is provided. The phosphate cement composition includes about 10 to 40 percent by weight calcium or magnesium oxide, about 10 to 40 percent by weight acid phosphate, and about 10 to 50 percent by weight vermiculite or perlite or mixture thereof.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 2, 2013
    Assignee: Grancrete, Inc.
    Inventors: Jeffrey L. Selph, James W. Paul, Jr.
  • Waste storage vessels and compositions therefor
    Patent number: 8409346
    Abstract: Waste storage vessels formed from a composition including calcium silicate, magnesium or calcium oxides and an acid phosphate are provided. The composition may also include fly ash or kaolin with or without the calcium silicate.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: April 2, 2013
    Assignee: Grancrete, Inc.
    Inventors: Jeffrey L. Selph, James W. Paul, Jr.
  • Heat resistant phosphate cement
    Patent number: 8273172
    Abstract: A phosphate cement composition is provided. The cement composition comprises about 10 to 40 percent by weight calcium or magnesium oxide, about 10 to 40 percent by weight acid phosphate, and about 10 to 50 percent by weight vermiculite or perlite or mixture thereof.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Grancrete, Inc.
    Inventors: Jeffrey L. Selph, James W. Paul, Jr.
  • Sprayable and pumpable phosphate cement
    Patent number: 7699928
    Abstract: A sprayable and pourable cement composition is provided. The cement composition comprises about 30 to 40 percent by weight calcium silicate, about 20 to 35 percent by weight magnesium oxide and about 25 to 45 percent by weight monopotassium phosphate.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 20, 2010
    Assignee: Grancrete, Inc.
    Inventor: James W. Paul, Jr.