Patents by Inventor Eva Gotthold

Eva Gotthold 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 and device for reducing the nitrate content of water
    Patent number: 5871620
    Abstract: To decrease the nitrate content of water, it is proposed to reduce nitrate to nitrogen in two stages. The first of these stages is a photochemical reduction to nitrite, and the second stage is a reduction of nitrite to nitrogen using amidosulphuric acid.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Andrea Egner
    Inventors: Helmar Haug, Eva Gotthold, Joffrey Janicke, Rene Janicke, Nadine Herter