Patents by Inventor Andrew Brian Barrett

Andrew Brian Barrett 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).

  • Conductive polymer device and method of manufacturing same
    Patent number: 6242997
    Abstract: An electronic device has three conductive polymer layers sandwiched between two external electrodes and two internal electrodes. The electrodes are staggered to create a first set of electrodes, in contact with a first terminal, alternating with a second set of electrodes in contact with a second terminal.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: June 5, 2001
    Assignee: Bourns, Inc.
    Inventors: Andrew Brian Barrett, Steven D. Hogge, Wen Been Li, Kun Ming Yang
  • Multilayer conductive polymer device and method of manufacturing same
    Patent number: 6236302
    Abstract: An electronic device includes two or more conductive polymer layers sandwiched between two external electrodes and one or more internal electrodes.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: May 22, 2001
    Assignee: Bourns, Inc.
    Inventors: Andrew Brian Barrett, Denis Walsh
  • Conductive polymer device and method of manufacturing same
    Publication number: 20010000658
    Abstract: An electronic device has three conductive polymer layers sandwiched between two external electrodes and two internal electrodes. The electrodes are staggered to create a first set of electrodes, in contact with a first terminal, alternating with a second set of electrodes in contact with a second terminal.
    Type: Application
    Filed: December 6, 2000
    Publication date: May 3, 2001
    Inventors: Andrew Brian Barrett, Steven D. Hogge, Wen Been Li, Kun Ming Yang
  • Multilayer conductive polymer device and method of manufacturing same
    Patent number: 6172591
    Abstract: A conductive polymer device has three or more conductive polymer layers sandwiched between two external electrodes and two or more internal electrodes. The electrodes are staggered to create a first set of electrodes, in contact with a first terminal, alternating with a second set of electrodes in contact with a second terminal.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: January 9, 2001
    Assignee: Bourns, Inc.
    Inventor: Andrew Brian Barrett
  • Conductive polymer PTC battery protection device and method of making same
    Patent number: 6124781
    Abstract: A battery protection device includes an upper foil electrode laminated to the upper surface of a conductive polymer PTC layer, and a lower foil electrode laminated to the lower surface of the PTC layer. An isolated portion of the lower electrode is formed by creating an annular isolation gap in the lower electrode. A first via is formed through the upper electrode, the PTC layer, and the isolated portion of the lower electrode. The diameter of the first via is smaller than the diameter of the isolated electrode portion, so that an annular area of the isolated electrode portion is left between the opening and the isolation gap. The internal wall surface of the first via and the annular electrode area are plated with a conductive metallization layer, which forms a first contact seat that is conductively connected by the metallized surface of the first via with the upper electrode. A first contact element is fixed to the first contact seat.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: September 26, 2000
    Assignee: Bourns, Inc.
    Inventors: Steven D. Hogge, Andrew Brian Barrett