Patents by Inventor Robert E. Nitzschmann

Robert E. Nitzschmann 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).

  • Application of finely divided dicyanodiamide onto ammonium-containing and sulfate-containing fertilizers
    Patent number: 4764200
    Abstract: Dicyanodiamide is applied onto the surfaces of ammonium-containing and sulfate-containing fertilizers at a fertilizer temperature of from 60.degree. to 130.degree. C. by mixing with finely divided dicyanodiamide. An aqueous solution containing calcium nitrate is applied at the same time or directly thereafter, with further mixing.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: August 16, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Otto Meiss, Robert E. Nitzschmann