Patents by Inventor Kai Helmut Löchhaas

Kai Helmut Löchhaas 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).

  • Method of removing fluorinated carboxylic acid from aqueous liquid
    Patent number: 7795332
    Abstract: A method for removing a fluorinated carboxylic acid or salt thereof from an aqueous liquid by contacting the aqueous liquid with adsorbent particles. The fluorinated carboxylic acid or salt thereof is selected from the group consisting of partially fluorinated carboxylic acids or salts thereof and fully fluorinated carboxylic acids or salts thereof.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: September 14, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Klaus Hintzer, Michael Jürgens, Harald Kaspar, Herbert Koenigsmann, Kai Helmut Löchhaas, Andreas R. Maurer, Werner Schwertfeger, Tilman Zipplies, George G. I. Moore, Jay F. Schulz, Richard M. Flynn