Patents by Inventor Vilmos Czikkely

Vilmos Czikkely 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).

  • Method for the continuous production of acetylene diurea
    Patent number: 6987190
    Abstract: The continuous production of acetylene diurea takes place by means of the reaction of glyoxal with urea in the presence of mineral acids. The reaction is carried out in at least one reactor having a mixing device, into which glyoxal, urea, and mineral acid are continuously fed, and from which a suspension of acetylene diurea in mother liquor is discharged. The acetylene diurea is mechanically removed from the mother liquor, and the remaining mother liquor is recycled back into the reactor, in whole or in part.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: January 17, 2006
    Assignee: COMPO GmbH & Co. KG
    Inventors: Dirk Franke, Klaus Horchler, Vilmos Czikkely
  • Method for the continuous production of acetylene diurea
    Publication number: 20040054191
    Abstract: The continuous production of acetylene diurea takes place by means of the reaction of glyoxal with urea in the presence of mineral acids. The reaction is carried out in at least one reactor having a mixing device, into which glyoxal, urea, and mineral acid are continuously fed, and from which a suspension of acetylene diurea in mother liquor is discharged. The acetylene diurea is mechanically removed from the mother liquor, and the remaining mother liquor is recycled back into the reactor, in whole or in part.
    Type: Application
    Filed: July 7, 2003
    Publication date: March 18, 2004
    Inventors: Dirk Franke, Klaus Horchler, Vilmos Czikkely
  • Long-term fertilizer containing nitrogen
    Publication number: 20030154755
    Abstract: A long-term fertilizer containing nitrogen, contains a mixture of acetylene diurea and at least one other organic fertilizer containing nitrogen, such as methylene urea, isobutylidene diurea, crotonylidene diurea, oxamide, melamine, substituted triazones, ethylene diurea, triuret or mixtures of them.
    Type: Application
    Filed: December 6, 2002
    Publication date: August 21, 2003
    Inventors: Klaus Horchler, Alexander Wissemeier, Reinhard Hahndel, Vilmos Czikkely, Wolfgang Weigelt, Wolfram Zerulla
  • Fertilizer formulations comprising polysulfonic acids
    Patent number: 6489438
    Abstract: Fertilizer formulations comprising polysulfonic acid together with inorganic fertilizers or slurry or liquid fertilizers and one or more nitrification inhibitors.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 3, 2002
    Assignee: Compo Gesellschaft MbH & Co., KG
    Inventors: Klaus Erhardt, Matthias Rädle, Vilmos Czikkely, Gerd Bühler
  • Use of ammonium syngenite as a slow-acting nitrogen fertilizer
    Patent number: 4883530
    Abstract: Soils are fertilized by a method in which ammonium syngenite (NH.sub.4).sub.2 SO.sub.4.CaSO.sub.4.H.sub.2 O or a mixture of finely divided ammonium sulfate, calcium sulfate, calcium nitrate, calcium chloride and/or dicalcium phosphate is applied to these soils, as a slow-acting nitrogen fertilizer, with the proviso that the molar ratio of Ca to SO.sub.4.sup.-- in the mixture is 1:2.+-.10%.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: November 28, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Von Maessenhausen, Vilmos Czikkely, Johann Jung