Patents by Inventor George Wypych

George Wypych 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).

  • Cementitious structural panel and method of its manufacture
    Patent number: 6176920
    Abstract: The present invention relates to a cementitious structural panel and its method of manufacture. The method of manufacture involves encapsulating a top and bottom layer of porous reinforcing material with a cementitious mixture by vibration. The structural panel may be coated with a layer of waterproof material.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 23, 2001
    Assignee: Smartboard Building Products Inc.
    Inventors: Patrick B. Murphy, George Wypych
  • Moisture curable polyurethane composition
    Patent number: 5288797
    Abstract: A one-part moisture curable polyurethane adhesive composition comprises a blend of polyurethane prepolymers and one or more additives which unexpectedly improve the sag resistance and mechanical properties of the formulation. The final adhesive composition retains good stability in the absence of moisture for an extended period between manufacture and application of the adhesive, and has a relatively rapid and consistent cure rate in the presence of atmospheric moisture. The final cured composition exhibits good mechanical properties and generally is unaffected by ambient application and cure conditions.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: February 22, 1994
    Assignee: Tremco Ltd.
    Inventors: Hamdy Khalil, Witek Majewski, George Nickel, George Wypych, Jeffrey D. van Heumen