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:
Mar. 06, 2007
Filed:
Apr. 03, 2002
Applicants:
Christian Walsdorff, Ludwigshafen, DE;
Michael Bajer, Mannheim, DE;
Reinhard Körner, Frankenthal, DE;
Klaus Harth, Altleiningen, DE;
Gerald Vorberg, Speyer, DE;
Wilhelm Ruppel, Mannheim, DE;
Inventors:
Christian Walsdorff, Ludwigshafen, DE;
Michael Bajer, Mannheim, DE;
Reinhard Körner, Frankenthal, DE;
Klaus Harth, Altleiningen, DE;
Gerald Vorberg, Speyer, DE;
Wilhelm Ruppel, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B10J 23/745 (2006.01); C07C 5/32 (2006.01); C01G 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Iron oxides are upgraded by calcining at from 700 to 1200° C.