Patents by Inventor James D. Pierce

James D. Pierce 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).

  • Apparatus for drying dielectric oil
    Patent number: 5574214
    Abstract: Apparatus for removing water from a dielectric oil includes first and second spaced-apart electrically conductive walls, a bed of molecular sieves between the first and second walls, and a device for measuring the capacitance across the bed of molecular sieves between the first and second walls.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: November 12, 1996
    Assignee: Velcon Filters, Inc.
    Inventors: Christopher S. Balton, James D. Pierce, Gregory S. Sprenger, Benjamin G. Taylor