Patents by Inventor Raffael Wullschleger

Raffael Wullschleger 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).

  • Adhesive varnish to receive powdered pigments
    Patent number: 6506242
    Abstract: An adhesive varnish, adapted to retain powdered pigments, contains colophony and pre-treated linseed oil in a solvent system including primarily naphtha of the boiling range ˜80° through ˜160° C. and technical ethanol. A two-component system comprising the adhesive varnish and powdered pigment serves for temporary coloring and/or lettering of substrates made of glass, polished stone, glazed ceramic, surfaces of baked lacquer and synthetic or natural materials, in particular display windows.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: January 14, 2003
    Assignee: RAFKA GmbH
    Inventor: Raffael Wullschleger
  • Adhesive varnish to receive powdered pigments
    Patent number: 6168657
    Abstract: The novel adhesive varnish to receive powdered pigments contains colophony and pretreated linseed oil in a solvent system, which consists primarily of naphtha of the boiling range ˜80 through ˜160° C. and technical ethanol. The adhesive varnish-powdered pigment system serves for temporary colored drawing on and/or lettering of substrates made of glass, polished stone, glazed ceramic, but also on surfaces of baked lacquer and synthetic or natural materials, in particular of display windows.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: January 2, 2001
    Assignee: Rafka GmbH
    Inventor: Raffael Wullschleger