Patents Assigned to Jobst La Dous
  • Photochromic plastic object
    Patent number: 7335702
    Abstract: A photochromic plastic object made of a transparent synthetic resin material composed of at least two mutually penetrating polymer networks of different polymer materials and containing at least one photochromic dye homogeneously distributed therein, and a method for producing such a photochromic object.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: February 26, 2008
    Assignees: Rodenstock GmbH, Jobst La Dous
    Inventor: Jobst La Dous