Patents by Inventor Vadim Leonidovitch Lichtchinski

Vadim Leonidovitch Lichtchinski 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).

  • Patent number: 5888424
    Abstract: Fluoroplastics become identifiable as to source by incorporating 1 to 450 ppm of inorganic phosphor into the fluoroplastic which does not degrade the fluoroplastic upon processing at a temperature of 300.degree. C. and does not discolor the fluoroplastic but does emit radiation which is characteristic of the phosphor when the fluoroplastic is exposed to excitation radiation.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: March 30, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sina Ebnesajjad, Vadim Leonidovitch Lichtchinski, Carmine Torardi, Robert Clayton Wheland