The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
Dec. 17, 2010
Applicants:
Klaus-dieter Nittel, Frankfurt am Main, DE;
Detlev Seifert, Munster, DE;
Ralf Stickler, Kahl am Main, DE;
Inventors:
Klaus-Dieter Nittel, Frankfurt am Main, DE;
Detlev Seifert, Munster, DE;
Ralf Stickler, Kahl am Main, DE;
Assignee:
Chemetall GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/18 (2006.01); C23C 22/00 (2006.01);
U.S. Cl.
CPC ...
C23C 22/18 (2013.01); C23C 22/188 (2013.01);
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.