Patents by Inventor Ralf Stickler

Ralf Stickler 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 applying manganese phosphate layers
    Patent number: 9506151
    Abstract: The invention relates to a method for applying manages phosphate layers to iron or steel surfaces using phosphating solutions containing manganese, phosphate, iron (II) ions as well as nitroguinidine, as well as its application to workpieces that are subject to sliding friction.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: November 29, 2016
    Assignee: Chemetall GmbH
    Inventors: Klaus-Dieter Nittel, Detlev Seifert, Ralf Stickler
  • METHOD FOR APPLYING MANGANESE PHOSPHATE LAYERS
    Publication number: 20110086171
    Abstract: The invention relates to a method for applying manages phosphate layers to iron or steel surfaces using phosphating solutions containing manganese, phosphate, iron(II) ions as well as nitroguinidine, as well as its application to workpieces that are subject to sliding friction.
    Type: Application
    Filed: December 17, 2010
    Publication date: April 14, 2011
    Inventors: Klaus-Dieter NITTEL, Detlev SEIFERT, Ralf STICKLER
  • Method for applying manganese phosphate layers
    Publication number: 20040221924
    Abstract: The invention relates to a method for applying manganese phosphate layers to iron or steel surfaces using phosphating solutions containing manganese, phosphate, iron (II) ions as well as nitroguinidine, as well as its application to workpieces that are subject to sliding friction.
    Type: Application
    Filed: April 22, 2004
    Publication date: November 11, 2004
    Inventors: Klaus-Dieter Nittel, Detley Seifert, Ralf Stickler
  • Aqueous solution and method for phosphatizing metallic surfaces
    Patent number: 6497771
    Abstract: An aqueous solution contains phosphate for producing layers of phosphate on metal surfaces selected from the group consisting of iron, steel, zinc, zinc alloys, aluminum and aluminum alloys. The solution contains 0.3 to 5 g Zn2+/1, 0.1 to 2 g nitroguanidine/1 and 0.05 to 0.5 g hydroxylamine/l, with an S-value amounting to 0.03 to 0.3 and the ratio of the weight of Zn2+ to P2O5=1:5 to 1.30.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: December 24, 2002
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Peter Schubach, Joachim Heitbaum, Thomas Kolberg, Margit Fleischhacker-Jeworrek, Peter Jorns, Michael Deemer, Ralf Stickler, Jurgen Specht, Michael Lenhard