Patents by Inventor Holly N. Keene

Holly N. Keene 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: 20220089889
    Abstract: An example thermal inkjet dye sublimation ink consists of a disperse dye colorant dispersion, glycerol, 1,2-hexanediol, optionally a water soluble or water miscible organic solvent, optionally an additive, and a balance of water. The disperse dye colorant dispersion is present in an amount ranging from about 1 wt % actives to about 7 wt % actives based on a total weight of the ink. Glycerol is present in an amount ranging from about 5 wt % to about 30 wt % based on the total weight of the ink. 1,2-hexanediol is present in an amount ranging from about 2 wt % to about 25 wt %, and the optional water soluble or water miscible organic solvent present in an amount up to about 7 wt %, each based on the total weight of the ink. The optional additive is selected from the group consisting of a surfactant, a chelating agent, a buffer, a biocide, and combinations thereof.
    Type: Application
    Filed: May 7, 2019
    Publication date: March 24, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Holly N. Keene, Howard Doumaux, Nicholas J. Stewart, David William Jenkins