Patents by Inventor Theodor Nowotny

Theodor Nowotny 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).

  • Tableware and decorative articles with a surface of silver
    Patent number: 4407875
    Abstract: A double coating for the protection of a silver surface article is disclosed. A protective varnish coating, enclosing an inner varnish layer on the silver surface, intimately adheres to and is removable from said inner varnish layer.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: October 4, 1983
    Assignee: Wurttembergische Metallwarenfabrik AG
    Inventors: Hans Schlegel, Theodor Nowotny, Rolf Mayer
  • Process for partially electroplating flat silver
    Patent number: 4297175
    Abstract: A process for partially silver electroplating the metal surface of a flat silver part wherein part of the surface is covered prior to silvering with a plating-resistant dipping enamel. A separation surface is provided between the exposed surface of the part to be covered with the dipping enamel and the exposed surface of the lengthwise adjacent part to be silvered. The separation surface consists of a material which is more difficult to wet with the dipping enamel than the metal of the surface to be covered. Preferably, the separation surface is the peripheral surface of a spacer lamination composed of polytetrafluoroethylene.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: October 27, 1981
    Assignee: Wurttembergische Metallwarenfabrik
    Inventors: Hans Schlegel, Theodor Nowotny