Patents by Inventor Roseanne W. Slingsby

Roseanne W. Slingsby 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).

  • Modified membrane suppressor and method for use
    Patent number: 4999098
    Abstract: A suppressor for use in ion chromatography including at least an effluent flow channel separated by a charged membrane from a suppressor flow channel. A screen of the same charge as the membrane is placed in at least the effluent flow channel. Preferably, a similar screen is placed in the regenerant flow channel. The screen increases the dynamic capacity of the membrane suppressor.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: March 12, 1991
    Assignee: Dionex Corporation
    Inventors: Christopher Pohl, Roseanne W. Slingsby, John R. Stillian, Ryszard Gajek