Patents by Inventor Pat MacDermott

Pat MacDermott 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).

  • Method of making an inkjet printhead
    Patent number: 8388117
    Abstract: A method of making an inkjet printhead comprises forming a first patterned layer 20 on a surface of a first substrate 10, forming a second patterned layer 28 on a surface of a second substrate 100, bonding the first and second layers in intimate face-to-face contact, and removing the second substrate 100 from the second patterned layer 28. The first and second patterned layers 20, 28 together define at least one ink ejection chamber having at least one ink ejection nozzle.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: March 5, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Phil Keenan, Pat MacDermott, Kevin Dooley, Gerard Lowe, Barry Fitzgerald
  • Method of making an inkjet printhead
    Patent number: 8152280
    Abstract: A hardwearing inkjet printhead comprises a substrate 10 having an ink ejection circuit 12 and a patterned glass frit planarization layer 22 on its surface. A ceramic body 28 has a substantially flat surface 28B intimately bonded to the planarization layer. The ceramic body and planarization layer together define at least one ink ejection chamber 18 and associated ink ejection nozzle 38 with the nozzle and at least the major part of the height of the chamber formed in the ceramic body.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 10, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Phil Keenan, Pat MacDermott, Kevin Dooley
  • Method of making an inkjet printhead
    Publication number: 20060033784
    Abstract: A method of making an inkjet printhead comprises forming a first patterned layer 20 on a surface of a first substrate 10, forming a second patterned layer 28 on a surface of a second substrate 100, bonding the first and second layers in intimate face-to-face contact, and removing the second substrate 100 from the second patterned layer 28. The first and second patterned layers 20, 28 together define at least one ink ejection chamber having at least one ink ejection nozzle.
    Type: Application
    Filed: January 26, 2005
    Publication date: February 16, 2006
    Inventors: Phil Keenan, Pat MacDermott, Kevin Dooley, Gerard Lowe, Barry Fitzgerald
  • Method of making an inkjet printhead
    Publication number: 20050179735
    Abstract: A hardwearing inkjet printhead comprises a substrate 10 having an ink ejection circuit 12 and a patterned glass frit planarization layer 22 on its surface. A ceramic body 28 has a substantially flat surface 28B intimately bonded to the planarization layer. The ceramic body and planarization layer together define at least one ink ejection chamber 18 and associated ink ejection nozzle 38 with the nozzle and at least the major part of the height of the chamber formed in the ceramic body.
    Type: Application
    Filed: January 26, 2005
    Publication date: August 18, 2005
    Inventors: Phil Keenan, Pat MacDermott, Kevin Dooley