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:
Aug. 28, 2012
Filed:
Mar. 18, 2011
Applicants:
Horst Meyer, Altenstadt, DE;
Matthias Grehl, Goldbach, DE;
Christian Nowottny, Nidderau, DE;
Martin Stettner, Altenstadt, DE;
Joachim Kralik, Hanau, DE;
Inventors:
Horst Meyer, Altenstadt, DE;
Matthias Grehl, Goldbach, DE;
Christian Nowottny, Nidderau, DE;
Martin Stettner, Altenstadt, DE;
Joachim Kralik, Hanau, DE;
Assignee:
W.C. Heraeus GmbH, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 61/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of Optionally, ruthenium is separated off by distillation, instead of precipitation, following step B, with the steps of