Patents by Inventor Caspar Lee

Caspar Lee 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).

  • Security pigments and the process of making thereof
    Publication number: 20080274028
    Abstract: Disclosed are methods for using color inconstancy pigments and/or dyes, such as rare earth doped color inconstancy pigments, in security applications including semi-overt and covert security application.
    Type: Application
    Filed: October 3, 2006
    Publication date: November 6, 2008
    Inventors: Hai Hui Lin, Philippe Schottland, Russell J. Schwartz, Stephen Postle, William Sayers, Caspar Lee
  • SECURITY PIGMENTS AND THE PROCESS OF MAKING THEREOF
    Publication number: 20080087189
    Abstract: Disclosed are rare earth pigments, and methods for making and using these pigments, in security applications. The rare earth pigments are IR absorbers with unique spectral features and optionally exhibit color inconstancy.
    Type: Application
    Filed: May 2, 2007
    Publication date: April 17, 2008
    Applicant: Sun Chemical Corporation
    Inventors: Hai Lin, Philippe Schottland, Russell Schwartz, Stephen Postle, Caspar Lee, Kenneth Fields, Aaron Hollman