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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.:

US 11406662 B1

PDFFull Text
Date of Patent:
Aug. 09, 2022

Filed:

Apr. 16, 2020

Microporous zirconium silicate for the treatment of hyperkalemia

Applicant:

Zs Pharma, Inc., Coppell, TX (US);

Inventors:

Donald Jeffrey Keyser, Southlake, TX (US);

Alvaro F. Guillem, Lantana, TX (US);

Assignee:

ZS PHARMA, INC., Coppell, TX (US);

Attorneys:

Jeff B. Vockrodt

Culhane Meadows PLLC

Primary Examiner:

Tigabu Kassa

Assistant Examiner:

Ivan A Greene

Int. Cl.
CPC ...
A61K 33/24 (2019.01); B01J 39/14 (2006.01); B01J 39/02 (2006.01); C01B 39/00 (2006.01); A61K 9/14 (2006.01); A61K 33/00 (2006.01); A61K 45/06 (2006.01); C01B 33/20 (2006.01); B01J 19/00 (2006.01); B01J 19/18 (2006.01); A61K 33/244 (2019.01); C07F 7/02 (2006.01); C01B 39/46 (2006.01); C01B 39/02 (2006.01);
U.S. Cl.
CPC ...
A61K 33/24 (2013.01); A61K 9/14 (2013.01); A61K 9/143 (2013.01); A61K 33/00 (2013.01); A61K 33/244 (2019.01); A61K 45/06 (2013.01); B01J 19/006 (2013.01); B01J 19/0013 (2013.01); B01J 19/0066 (2013.01); B01J 19/18 (2013.01); B01J 39/02 (2013.01); B01J 39/14 (2013.01); C01B 33/20 (2013.01); C01B 39/00 (2013.01); C01B 39/02 (2013.01); C01B 39/46 (2013.01); C07F 7/025 (2013.01); B01J 2219/00063 (2013.01); B01J 2219/00094 (2013.01); B01J 2219/00768 (2013.01); C01P 2002/72 (2013.01); C01P 2002/82 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01); Y10T 428/2982 (2015.01);
Abstract

The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and/or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of UZSi-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia.

Find Patent Forward Citations

Keyser, Donald. (2022). Microporous zirconium silicate for the treatment of hyperkalemia (U.S. Patent No. 11406662). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11406662

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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