Patents by Inventor Otto Funk

Otto Funk 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 cleaning debris containing pollutants
    Patent number: 5296040
    Abstract: Process for the cleaning of debris containing water and contaminated with pollutants using solvents, including the steps of: addition of the solvent to the material to be treated, followed by thorough mixing; separation of the liquid phase containing the pollutants; stripping of the remaining solvent from the residue; and recovery of the solvent obtained in the last two steps.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: March 22, 1994
    Assignee: Ruhrkohle Oel und Gas GmbH
    Inventors: Herbert Dybus, Otto Funk