Patents by Inventor Hector J. Lebron

Hector J. Lebron 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).

  • Fluid ejection device
    Patent number: 10632747
    Abstract: A fluid ejection device includes a fluid ejection chamber, a drop ejecting element communicated with the fluid ejection chamber, an orifice communicated with the fluid ejection chamber, a fluid passage between the fluid ejection chamber and the orifice, and a structure in the fluid passage between the fluid ejection chamber and the orifice.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 28, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hector J Lebron, Melinda M Valencia
  • FLUID EJECTION DEVICE
    Publication number: 20190224969
    Abstract: A fluid ejection device includes a fluid ejection chamber, a drop ejecting element communicated with the fluid ejection chamber, an orifice communicated with the fluid ejection chamber, a fluid passage between the fluid ejection chamber and the orifice, and a structure in the fluid passage between the fluid ejection chamber and the orifice.
    Type: Application
    Filed: October 14, 2016
    Publication date: July 25, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Hector J LEBRON, Melinda M VALENCIA
  • Back pressure control in inkjet printing
    Patent number: 7467858
    Abstract: A method of inkjet printing includes establishing a back pressure corresponding to a desired print mode in a printhead and changing the back pressure in response to changes in print mode. A printing system for printing in a number of distinct print modes includes an inkjet pen having a printhead and a back pressure control unit having multiple back pressure settings. The back pressure is set to a first value when the printing system is operating in a first print mode to a second value when the printing system is operating in a second print mode. In another embodiment, the printing system includes structure for controlling meniscus condition in the printhead nozzles by selectively changing back pressure.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: December 23, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hector J. Lebron, Clayton L. Holstun, Dustin W. Blair