Patents by Inventor Berthold Meier

Berthold Meier 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).

  • Novel prepregs
    Patent number: 5075155
    Abstract: A prepreg comprising a porous support material impregnated with a binder consisting essentially of an epoxy resin, a bisphenol novolac hardener and 0.4 to 2.0% by weight based on the total binder of an imidazole and a method of preparing laminates of composite materials therefrom.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: December 24, 1991
    Assignee: Rutgerswerke AG
    Inventors: Karl Jellinek, Berthold Meier, Horst Duda, Winfried Reisel