Patents by Inventor Celia Elizabeth Fisher

Celia Elizabeth Fisher 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).

  • System and method for monitoring debris in a fluid
    Patent number: 5760298
    Abstract: A system for monitoring debris in a fluid by detecting electrostatic charges associated with the fluid. Both the electrostatic characteristic of the fluid and of the debris are sensed and then separated by a processor that compares their mobility. The monitoring system may be used to detect debris in any fluid capable of being electrostatically charged, such as oil and superheated steam.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: June 2, 1998
    Assignee: Stewart Hughes Ltd.
    Inventors: Celia Elizabeth Fisher, Roy Forfitt