Patents by Inventor Kurt S. Spiegler

Kurt S. Spiegler 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).

  • Backwashing reverse-osmosis and ultrafiltration membranes by electro-osmosis
    Patent number: 4231865
    Abstract: Improved efficiency of reverse-osmosis and ultrafiltration processes is achieved by backwashing membranes by means of electroosmosis. This is achieved by application of an electric potential across the membrane, thereby causing a backflow of water through the membrane.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: November 4, 1980
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Kurt S. Spiegler