Patents by Inventor Lisong Hou

Lisong Hou 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).

  • Photochromic coating composition comprising nanoscales particles and process for providing substrate coated with the same
    Patent number: 6639039
    Abstract: A photochromic coating composition contains a silicon-containing precondensate derived from a hydrolysable silane containing a polymerizable functional group on a hydrolysis-stable radical, a photochromic dye, a stabilizer, and nanoscale particles. The coating composition, when applied to transparent plastic and glass substrates and cured, gives a coating having high light stability and good scratch resistance.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: October 28, 2003
    Assignee: Institut für Neue Materialien gemeinnützige GmbH
    Inventors: Kira Fries, Lisong Hou, Marion Pietsch, Martin Mennig, Helmut Schmidt