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. 19, 2025
Filed:
Dec. 18, 2019
Applicant:
H.c. Starck Tungsten Gmbh, Munich, DE;
Inventors:
Julia Meese-Marktscheffel, Goslar, DE;
Armin Olbrich, Seesen, DE;
Anja Weiland, Langelsheim, DE;
Frank Van Der Pütten, Goslar, DE;
Tino Säuberlich, Bad Harzburg, DE;
Tobias Schröer, Bad Harzburg, DE;
Jürgen Müller, Pforzheim, DE;
Assignee:
H.C. Starck Tungsten GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 41/00 (2006.01); B01D 61/02 (2006.01); B01D 63/10 (2006.01); C02F 1/44 (2023.01); C02F 101/20 (2006.01);
U.S. Cl.
CPC ...
C01G 41/006 (2013.01); B01D 61/025 (2013.01); B01D 61/026 (2022.08); B01D 63/10 (2013.01); C02F 1/441 (2013.01); C02F 2101/20 (2013.01);
Abstract
The present invention relates to a process for preparing ammonium metatungstate using a reverse osmosis cell, and to a device for performing the process according to the invention.