Patents by Inventor Kenneth Fields

Kenneth Fields 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).

  • 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