Patents by Inventor Johann Ondrejas

Johann Ondrejas 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).

  • Patent number: 4855182
    Abstract: A repair laminate for the quick repair of lightweight panels used particularly in aircraft construction comprised of a lightweight core 2, e.g., in the form of a possibly pressed honeycomb structure, and two outer laminates 3,4, which repair laminate is comprised of a solid cured or thermoplastic layer of synthetic material 13 bonded on one side to a hot-melt adhesive 15 and optionally on the other side to a decorative liner-layer. The synthetic material layer 13 may advantageously be a glass-fabric reinforced phenol aldehyde resin and the liner-laminate may be a dyed polyvinyl fluoride film.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: August 8, 1989
    Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft
    Inventors: Johann Ondrejas, Friedrich Zitz