Patents by Inventor Tracy Frederick

Tracy Frederick 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).

  • Water soluble fluorescent or colored dyes and methods for their use
    Patent number: 11939474
    Abstract: Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, wherein R1, R2, R3, L1, L2, L3, L4, L5, L6, M1, M2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 26, 2024
    Assignee: Sony Group Corporation
    Inventors: Tracy Matray, Hesham Sherif, C. Frederick Battrell
  • Color Changeable Carrier and Method
    Publication number: 20120267277
    Abstract: The present application is directed to a color changeable carrier constructed from at least one dye-laden material, wherein the dye-laden material is treated in a manner effective to provide one or more first visible colors under predetermined ambient conditions and one or more second visible colors under different predetermined ambient conditions.
    Type: Application
    Filed: March 21, 2012
    Publication date: October 25, 2012
    Inventors: Tracy Frederick, Terry Frederick