Patents by Inventor Markus Schildhauer

Markus Schildhauer 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 and dye mixtures for marking shape memory polymers, and shape memory polymer articles with switchable readability
    Patent number: 9670330
    Abstract: A method for marking an item including a shape memory polymer (SMP) having a visual readable and/or machine readable graphic element on the surface of the item. The method includes pretreating the surface of the item; coloring the surface of the item with a dye solution containing an organic dye and an organic solvent; cleaning and drying the surface of the item; and engraving by at least partially ablating the surface of the item. The dyeing process is suitable for coloring the surface of a shape memory polymer (SMP), wherein the information is engraved in a form of a code or other label on the colored surface. The coloring causes an increased contrast and thus facilitates machine readability of marking and coding without affecting the other properties of the SMP.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: June 6, 2017
    Assignee: BAM Bundesanstalt fuer Materialforschung und—pruefung
    Inventors: Thorsten Pretsch, Melanie Ecker, Markus Schildhauer
  • METHOD AND DYE MIXTURES FOR MARKING SHAPE MEMORY POLYMERS, AND SHAPE MEMORY POLYMER ARTICLES WITH SWITCHABLE READABILITY
    Publication number: 20150119238
    Abstract: A method for marking an item including a shape memory polymer (SMP) having a visual readable and/or machine readable graphic element on the surface of the item. The method includes pretreating the surface of the item; colouring the surface of the item with a dye solution containing an organic dye and an organic solvent; cleaning and drying the surface of the item; and engraving by at least partially ablating the surface of the item. The dyeing process is suitable for colouring the surface of a shape memory polymer (SMP), wherein the information is engraved in a form of a code or other label on the coloured surface. The colouring causes an increased contrast and thus facilitates machine readability of marking and coding without affecting the other properties of the SMP.
    Type: Application
    Filed: October 26, 2012
    Publication date: April 30, 2015
    Inventors: Thorsten Pretsch, Melanie Ecker, Markus Schildhauer