Patents by Inventor John Morrow Gardner

John Morrow Gardner 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 sets for ink-jet printing
    Patent number: 9708495
    Abstract: The present disclosure is drawn to ink-jet ink sets, as well as related systems and methods. In one example, an ink set for ink-jet printing can comprise a cyan ink-jet ink including from about 2 wt % to about 5 wt % of a cyan pigment admixed in a first ink vehicle; a magenta ink-jet ink including a magenta colorant comprising from about 2 wt % to about 5 wt % of a magenta pigment and about 0.1 wt % to about 1 wt % of a slightly soluble magenta dye admixed in a second ink vehicle; and a yellow ink-jet ink including from about 2 wt % to about 5 wt % of a yellow pigment admixed in a third ink vehicle.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: July 18, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: George Sarkisian, Keshava A. Prasad, John Morrow Gardner, Tayo Olu Yolemi
  • INK SETS FOR INK-JET PRINTING
    Publication number: 20140253650
    Abstract: The present disclosure is drawn to ink-jet ink sets, as well as related systems and methods. In one example, an ink set for ink-jet printing can comprise a cyan ink-jet ink including from about 2 wt % to about 5 wt % of a cyan pigment admixed in a first ink vehicle; a magenta ink-jet ink including a magenta colorant comprising from about 2 wt % to about 5 wt % of a magenta pigment and about 0.1 wt % to about 1 wt % of a slightly soluble magenta dye admixed in a second ink vehicle; and a yellow ink-jet ink including from about 2 wt % to about 5 wt % of a yellow pigment admixed in a third ink vehicle.
    Type: Application
    Filed: October 28, 2011
    Publication date: September 11, 2014
    Inventors: George Sarkisian, Keshava A. Prasad, John Morrow Gardner, Tayo Olu Yolemi
  • Phosphate-containing surfactants for use with pigment—and latex-containing ink-jet inks
    Patent number: 8360569
    Abstract: The present disclosure is drawn to an ink-jet ink and a method of ink-jet printing over a prolonged period of time. The ink-jet ink include from 0.1 wt % to 10 wt % pigment by solids, from 0.1 wt % to 15 wt % latex by solids, and from 0.01 wt % to 3 wt % phosphate-containing surfactant, wherein when the ink-jet ink is fired from a thermal ink-jet printhead at 400 million drops per nozzle with said nozzle having an orifice size of about 20 microns, at least 80% drop weight is retained compared to an initial firing prior to firing the 400 million drops per nozzle.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaohe Chen, John Morrow Gardner, Brian Douglas Mather, Yan Zhu
  • PHOSPHATE-CONTAINING SURFACTANTS FOR USE WITH PIGMENT- AND LATEX-CONTAINING INK-JET INKS
    Publication number: 20100277526
    Abstract: The present disclosure is drawn to an ink-jet ink and a method of ink-jet printing over a prolonged period of time. The ink-jet ink can comprise from 0.1 wt % to 10 wt % pigment by solids, from 0.1 wt % to 15 wt % latex by solids, and from 0.01 wt % to 3 wt % phosphate-containing surfactant.
    Type: Application
    Filed: December 14, 2007
    Publication date: November 4, 2010
    Applicant: Hewlett-Packard Development Co., L.P.
    Inventors: Xiaohe Chen, John Morrow Gardner, Brian Douglas Mather, Yan Zhu
  • Aqueous ink jet inks for postal metering
    Patent number: 6176908
    Abstract: Aqueous, fluorescent red ink jet inks which meet US Postal Service requirements for metered mail are disclosed and comprise an aqueous vehicle, a red or magenta pigment, a polymeric dispersant, a fluorescent dye and, optionally a hydrotrope additive.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard D. Bauer, John Morrow Gardner, Loretta Ann Grezzo Page, David Alvin Tyvoll