Patents by Inventor Mario Protzmann

Mario Protzmann 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).

  • Granular fertilizer for plants containing a type of mycorrhizal fungus
    Patent number: 6387146
    Abstract: The invention relates to a granular fertilizer for plants, the grains of said fertilizer containing spores and/or mycellium of at least one type of mycorrhizal fungus in sufficient amounts to ensure symbiosis.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: May 14, 2002
    Assignee: Maltaflor Düngergesellschaft mbH
    Inventors: Mario Protzmann, Harald Böckem