Patents by Inventor Julius-Ludwig Herczeg

Julius-Ludwig Herczeg 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).

  • Method of producing a scratch resistant coating on a sheet of thermoplastic material
    Patent number: 4680198
    Abstract: A three-dimensionally crosslinkable resin is applied to a sheet of thermoplastic material, and cured to form a scratch resistant coating on the sheet. The coated sheet is then subjected to the action of heat and uniform area pressure between polished surfaces. This pressing treatment results in an optically smooth surface of the coating.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: July 14, 1987
    Assignee: Gurit-Worbla AG
    Inventors: Julius-Ludwig Herczeg, Martin Lenhard, Ernst Fluckiger