Patents by Inventor Robert M Amici

Robert M Amici 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).

  • Ink-jet printing inks containing ester modified macromolecular chromophores
    Patent number: 6214100
    Abstract: The ink of the invention comprises a vehicle and a macromolecular chromophore colorant. The colorant is a water-insoluble pigment that has been chemically modified to be water dispersible by addition of functional groups to the surface of the pigment resulting in water dispersible colorant particles. The performance of these pigments is improved by the addition of specific functional groups which provide improved black to color bleed control and high waterfastness.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: April 10, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Dennis P Parazak, Ronald J Gambale, Robert M Amici