Patents by Inventor Shonna Anne DAWN

Shonna Anne DAWN 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).

  • PIGMENT DISPERSIONS
    Publication number: 20190375959
    Abstract: The present disclosure is drawn to pigment dispersions including from 5 wt % to 30 wt % of a pigment having an amide group, a styrene acrylic polymer having a weight average molecular weight from 3,000 Mw to 30,000 Mw and having a weight ratio to the pigment of from 1:1 to 1:10, a lactam co-solvent having a weight ratio to the pigment of from 10:1 to 1:10, and water. The lactam co-solvent can be co-milled with the pigment and an at least 5 wt % portion of the lactam co-solvent can be adsorbed on the pigment via van der waals interaction with the amide group.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kai-Kong IU, Stone S. OUYANG, Shao-Wei LI, Shonna Anne DAWN, Dennis Z. GUO