Patents by Inventor Jan LAGERWALL

Jan LAGERWALL 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).

  • Cholesteric liquid crystal based solid shell and production method thereof
    Patent number: 11926778
    Abstract: A method for producing a cholesteric liquid crystal based shell is provided. The method comprises producing a cholesteric liquid crystal shell, solidifying the cholesteric liquid crystal shell so as to obtain a solid shell and perforating the solid shell. Also provided is a cholesteric liquid crystal based solid shell comprising a perforation. A coating composition comprising a plurality of cholesteric liquid crystal based solid shells, an item comprising a tag that comprises the cholesteric liquid crystal based solid shells and a method for authenticating the item are also provided.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: March 12, 2024
    Assignee: Université du Luxembourg
    Inventors: Yong Geng, Jan Lagerwall
  • CHOLESTERIC LIQUID CRYSTAL BASED SOLID SHELL AND PRODUCTION METHOD THEREOF
    Publication number: 20220389317
    Abstract: An aspect of the present invention relates to a method for producing a cholesteric liquid crystal based shell. The method comprises producing a cholesteric liquid crystal shell, solidifying the cholesteric liquid crystal shell so as to obtain a solid shell and perforating the solid shell. A second aspect of the present invention relates to a cholesteric liquid crystal based solid shell comprising a perforation. Other aspects of the present invention pertain to a coating composition comprising a plurality of cholesteric liquid crystal based solid shells, an item comprising a tag that comprises the cholesteric liquid crystal based solid shells and a method for authenticating the item.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 8, 2022
    Inventors: Yong GENG, Jan LAGERWALL