Patents by Inventor Klaus-Dieter Schübel

Klaus-Dieter Schübel 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).

  • Plastic molded bodies having two-dimensional and three-dimensional image structures produced through laser subsurface engraving
    Patent number: 7704586
    Abstract: The present invention relates to plastic molded bodies having two-dimensional or three-dimensional image structures produced in the interior through laser subsurface engraving. The plastic molded bodies are made of plastic materials which have a content of nanoscale metal oxides having particle sizes from 1 to 500 nm, both the plastic material and also the included metal oxide being transparent to the laser light used for producing the image structures. The plastic materials from which the molded bodies are manufactured particularly contain metal oxides having particle sizes from 5 to 100 nm at a content of 0.0001 to 0.1 weight-percent. Typical metal oxides are nanoscale indium-tin oxide or antimony-tin oxide.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 27, 2010
    Assignee: Degussa AG
    Inventors: Klaus-Dieter Schübel, Jürgen Kreutz, Wilhelm Wolff, Günther Ittmann, Thomas Hasskerl, Harald Häger, Ralf Richter, Wolfgang Stuber