Patents by Inventor Kai Kruse

Kai Kruse 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 immobilizing organic and inorganic pollutants in a contaminated soil material on a remediation site
    Patent number: 5651831
    Abstract: A process for immobilizing organic and inorganic pollutants in contaminated soil materials in which partial remediation areas of a reconstruction site are purified by an on-site procedure presenting no danger to the surrounding ground water. With a clay mineral content of greater than or equal to 60 wt. %, both organic and inorganic pollutants are reduced and immobilized by washing with an alkylammonium compound. When the clay mineral content is less than 60 wt. %, a bentonite compound is added in controlled amounts and the pollutants are immobilized or further washed out.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: July 29, 1997
    Inventor: Kai Kruse