Patents by Inventor Otto Wendt

Otto Wendt 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 for preventing a formation of dust during the loading and shipping of sulfate fertilizer granulates
    Patent number: 5431708
    Abstract: A process for preventing the formation of dust during the loading of sulfate fertilizer granulates includes spraying a high-percent aqueous solution of urea onto the fertilizer granulates. The amount of aqueous solution sprayed ranges from 4 to 8 kg of solution per ton of granulate. The concentration of urea within the solution is between 50% and 80% by weight.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: July 11, 1995
    Assignee: Kali und Salz AG
    Inventors: Gerhard Lehmann, Otto Wendt, Wolfgang Walczyk
  • Process for binding dust in fertilizer granules
    Patent number: 5383952
    Abstract: Dust is bound in fertilizer granules by spraying the granules with a solution of molasses and another oxygen-containing hydrocarbon from the group glycerin, polyethylene glycol and triethanolamine.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: January 24, 1995
    Assignee: Kali und Salz Aktiengesellschaft
    Inventors: Arno Singewald, Otto Wendt, Gunter Nurnberger, Dieter Paetz, Wolfgang Walczyk, Klaus-Dieter Muller