Patents by Inventor John J. Fitzpatrick

John J. Fitzpatrick 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: 20200032625
    Abstract: A method and system for temporarily preventing fluid flow through a screen assembly installed in a wellbore can include a screen assembly interconnected in a tubing string. Components of the screen assembly can include a base pipe, one or more filter layers, an optional drainage layer(s), with flow paths through each of the components. A degradable metal barrier can be applied to at least one of the components, which thereby temporarily prevents fluid flow through the flow paths, and temporarily provides pressure isolation radially between an interior and an exterior of the screen assembly. Degradation of the metal barrier can allow fluid and pressure communication radially between the interior and the exterior of the screen assembly.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 30, 2020
    Inventors: John J. Fitzpatrick, James R. Longbottom
  • Patent number: 7145353
    Abstract: A probe head for testing the properties of a semiconducting device (10) under test including a dielectric film (24) supporting at least one semiconducting device (10) under test with a support frame (26) tautly supporting the dielectric film (24). A first support (40) positions a first probe (28) for electrically contacting a first side (16) of the semiconducting device (10) under test and a second support (34), having a actuator to move a second probe (30) between a first position (P1) and a second position (P2), positions second probe (30) with the second position (P2) being for electrically contacting an opposing second side (18) of the semiconductor device under test.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: December 5, 2006
    Assignee: Wentworth Laboratories, Inc.
    Inventors: Jeremy Hope, Adrian R. Overall, John J. Fitzpatrick
  • Patent number: D423311
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: April 25, 2000
    Inventor: John J. Fitzpatrick