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:
May. 14, 2013
Filed:
May. 29, 2012
Applicants:
Viktor Stoller, Bad Harzburg, DE;
Michael Erb, Salzgitter, DE;
Juliane Meese-marktscheffel, Goslar, DE;
Michael Lohse, Goslar, DE;
Klaus-jürgen Marschall, Goslar, DE;
Frank Schrumpf, Goslar, DE;
Inventors:
Viktor Stoller, Bad Harzburg, DE;
Michael Erb, Salzgitter, DE;
Juliane Meese-Marktscheffel, Goslar, DE;
Michael Lohse, Goslar, DE;
Klaus-Jürgen Marschall, Goslar, DE;
Frank Schrumpf, Goslar, DE;
Assignee:
H. C. Starck GmbH, , DE;
Primary Examiner:
Int. Cl.
CPC ...
C01G 41/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is directed to ammonium paratungstate decahydrate containing at least 75% of crystals having a length of at least 200 μm and having a ratio of length to width of less than 4.5:1.