Patents Represented by Law Firm Collard and Roe
  • Method for the extraction of organic pollutants from contaminated soils
    Patent number: 5425881
    Abstract: A method for the extraction of organic pollutants from contaminated soils without further contaminating the soil with organic solvents comprises the step of mixing aqueous solutions of cyclodextrins or their derivatives with the contaminated soil.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: June 20, 1995
    Assignee: Wacker-Chemie GmbH
    Inventors: Joszef Szejtli, Eva Fenyvesi