Patents by Inventor Steven Duselis

Steven Duselis 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).

  • Structural fiber cement building materials
    Patent number: 8209927
    Abstract: A structural fiber cement sheet containing cementitious matrix and reinforcing cellulose fibers distributed throughout the matrix having a dry density less than 1.25 g/cm3, a thickness less than 0.7500 in, and able to withstand uniform loads of 200 psf or greater according to test method of Section 6.4.2.4 of PS2 and with a deflection of less than 0.067 inches at 60 psf when spaced on a span of 24 inches or less on center.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 3, 2012
    Assignee: James Hardie Technology Limited
    Inventors: John Sydney Cottier, December Rose Cowen, Remi Dunoyer, Steven Duselis, James Albert Gleeson, Amitabha Kumar
  • STRUCTURAL FIBER CEMENT BUILDING MATERIALS
    Publication number: 20090162602
    Abstract: A structural fiber cement sheet containing cementitious matrix and reinforcing cellulose fibers distributed throughout the matrix having a dry density less than 1.25 g/cm3, a thickness less than 0.7500 in, and able to withstand uniform loads of 200 psf or greater according to test method of Section 6.4.2.4 of PS2 and with a deflection of less than 0.067 inches at 60 psf when spaced on a span of 24 inches or less on center.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Applicant: JAMES HARDIE INTERNATIONAL FINANCE B.V.
    Inventors: John Sydney Cottier, December Rose Cowen, Remi Dunoyer, Steven Duselis, James Albert Gleeson, Amitabha Kumar