Patents by Inventor Lauri Mehto

Lauri Mehto 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).

  • Building panel and system
    Patent number: 4646494
    Abstract: An improved building panel for wall and roof systems comprises a core of expanded polystyrene or polyurethene foam faced with a layer of wood particle board of gypsum board covered by a layer of steel fastened to the particle board of gypsum so that during fire conditions, gases of vapors evolved from particle board of gypsum board can escape from the interior of the panel but air exterior to the panel is prevented from entering, thereby ensuring that the load-bearing capacity of the panel is maintained for an extended period of time during a fire.
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: March 3, 1987
    Inventors: Olli Saarinen, Paavo Tihverainen, Seppo Rinne, Lauri Mehto