Patents by Inventor David E. Ashley

David E. Ashley 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).

  • Liquid colorant and method
    Patent number: 6486248
    Abstract: A solvent free, diluent free, hydrocarbon soluble liquid polymeric colorant. Also disclosed is a method for applying a liquid colorant to solid granular substrates, such as fertilizer, to provide a colored substrate where the colorant exhibits a reduced tendency to bleed or migrate from the surface of the colored substrate onto other surfaces.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: November 26, 2002
    Assignee: Milliken & Company
    Inventors: David E. Ashley, Leonard J. Starks, Paul D. Halphen
  • Liquid colorant and method
    Publication number: 20020091183
    Abstract: A solvent free, diluent free, hydrocarbon soluble liquid polymeric colorant. Also disclosed is a method for applying a liquid colorant to solid granular substrates, such as fertilizer, to provide a colored substrate where the colorant exhibits a reduced tendency to bleed or migrate from the surface of the colored substrate onto other surfaces.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 11, 2002
    Inventors: David E. Ashley, Leonard J. Starks, Paul D. Halphen