Patents by Inventor Steven J. Whitney

Steven J. Whitney 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).

  • Voltage variable material for direct application and devices employing same
    Patent number: 7202770
    Abstract: The present invention provides overvoltage circuit protection. Specifically, the present invention provides a voltage variable material (“VVM”) that includes an insulative binder that is formulated to intrinsically adhere to conductive and nonconductive surfaces. The binder and thus the VVM is self-curable and may be applied to an application in the form of an ink, which dries in a final form for use. The binder eliminates the need to place the VVM in a separate device or for separate printed circuit board pads on which to electrically connect the VVM. The binder and thus the VVM can be directly applied to many different types of substrates, such as a rigid (FR-4) laminate, a polyimide or a polymer. The VVM can also be directly applied to different types of substrates that are placed inside a device.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: April 10, 2007
    Assignee: Littelfuse, Inc.
    Inventors: Edwin James Harris, Scott Davidson, David Perry, Steven J. Whitney
  • Integrated electrostatic discharge and overcurrent device
    Patent number: 6628498
    Abstract: An electrical circuit protection device has an overcurrent protection portion and an overvoltage protection portion. The overcurrent protection portion has a surface. The overvoltage protection portion is disposed on the surface. In one preferred embodiment, the overcurrent portion includes a PTC device and the overvoltage portion includes a voltage variable material. A number of terminations are configured to connect the overcurrent protection portion and the overvoltage protection portion to a printed circuit board.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: September 30, 2003
    Inventors: Steven J. Whitney, Nate Maercklein, Rob Deblieck, Scott Davidson
  • Integrated electrostatic discharge and overcurrent device
    Publication number: 20020024791
    Abstract: An electrical circuit protection device has an overcurrent protection portion and an overvoltage protection portion. The overcurrent protection portion has a surface. The overvoltage protection portion is disposed on the surface. In one preferred embodiment, the overcurrent portion includes a PTC device and the overvoltage portion includes a voltage variable material. A number of terminations are configured to connect the overcurrent protection portion and the overvoltage protection portion to a printed circuit board.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 28, 2002
    Inventors: Steven J. Whitney, Nate Maercklein, Rob Deblieck, Scott Davidson