Patents by Inventor Charles T. Rawlinson

Charles T. Rawlinson 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).

  • Process for drying and solvent extraction of contaminated water-wet soils, sediments, and sludges
    Patent number: 5518621
    Abstract: This invention is a continuous process combining water evaporation and solvent extraction of contaminated water-wet soil, sediment or sludge, including specifically, but not exclusively Petroleum Refinery "K" and "F" wastes as defined by the U.S.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: May 21, 1996
    Assignee: Hanover Research Corporation
    Inventors: Thomas C. Holcombe, Theodore D. Trowbridge, Charles T. Rawlinson