Patents by Inventor Bernhard Wiechens

Bernhard Wiechens 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).

  • Micronutrient-containing leaf fertilizer based on magnesium sulfate and process for its production
    Patent number: 6383247
    Abstract: A micronutrient-containing leaf fertilizer has magnesium sulfate heptahydrate as a carrier material in such an amount that a solid nutrient combination of 13% to 15% by weight MgO, 0% to 3.5% by weight boron, 0% to 6.5% by weight manganese and 10.3% to 14% by weight sulfur is obtained by solely admixing manganese sulfate monohydrate and boric acid with the carrier and this combination being converted into a diluted leaf fertilizer solution by adding water.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: May 7, 2002
    Assignee: Kali und Salz GmbH
    Inventor: Bernhard Wiechens