Patents Assigned to Magruder Color Company
  • Photochromic fluorescent compositions
    Patent number: 5298190
    Abstract: A composition containing a photochromic material and a fluorescent pigment provides a duality of color in products where the composition is used as the coloring agent. Under ordinary lighting conditions, the composition will provide a brilliant, glowing color and under excitation illumination such a ultraviolet radiation, a different brilliant glowing color results.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: March 29, 1994
    Assignee: Magruder Color Company
    Inventors: John G. Mone, Thomas C. Molloy