Patents by Inventor Mark A. Warren

Mark A. Warren 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).

  • Filter media treatment of a fluid flow to remove colloidal matter
    Patent number: 5374357
    Abstract: Colloidal matter is removed from a fluid flow by first adsorbing a coagulant onto the surface of a finely divided filter media, and thereafter passing a colloid-containing fluid through the filter media. The adsorbing of coagulant is accomplished with the filter off-line, and it is returned on-line for filtering of the fluid. After the coagulant is adsorbed onto the filter media, it is not necessary to continue feeding coagulant during on-line operation, as the adsorbed coagulant captures the colloidal matter in the fluid and retains it on the surface of the filter media. The captured colloidal matter is removed during back washing of the filter media.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: December 20, 1994
    Assignee: D. W. Walker & Associates
    Inventors: Daniel L. Comstock, Lee A. Durham, Mark A. Warren, Bryce P. Anderson