ZS Pharma, Inc. Patent Applications Pending
14 applications still open at the USPTO, newest filing first, as the USPTO Open Data Portal records them; the company is the first-named applicant. The application number opens the full record at Patent Center.
- 2025-08-18: Application 19303087; Invention MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA; Applicant ZS Pharma, Inc.; Status Docketed New Case - Ready for Examination.
- 2016-10-10: Application PCTUS2016056286; Invention EXTENDED USE ZIRCONIUM SILICATE COMPOSITIONS AND METHODS OF USE THEREOF; Applicant ZS PHARMA, INC.; Status RO PROCESSING COMPLETED-PLACED IN STORAGE.
- 2014-12-10: Application PCTUS2014069524; Invention MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA WITHOUT CO-ADMINISTRATION OF LITHIUM; Applicant ZS PHARMA, INC.; Status RO PROCESSING COMPLETED-PLACED IN STORAGE.
- 2014-10-24: Application 62068498; Invention MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA; Applicant ZS PHARMA, INC.; Status Provisional Application Expired.
| Filed | Application | Invention | Applicant | Status | Published as | Inventor name | Inventor country | Examiner |
|---|---|---|---|---|---|---|---|---|
| 2025-08-18 | 19303087 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS Pharma, Inc. | Docketed New Case - Ready for Examination | US20260041709A1 | Donald Jeffrey Keyser Alvaro F. Guillem | United States United States | CENTRAL, DOCKET |
| 2016-10-10 | PCTUS2016056286 | EXTENDED USE ZIRCONIUM SILICATE COMPOSITIONS AND METHODS OF USE THEREOF | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | YOUNG, LEE W | |
| 2014-12-10 | PCTUS2014069524 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA WITHOUT CO-ADMINISTRATION OF LITHIUM | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD EFFREY KEYSER | United States United States | THOMAS, SHANE M | |
| 2014-10-24 | 62068498 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC. | Provisional Application Expired | Donald Jeffrey Keyser Alvaro F. Guillem | United States United States | ||
| 2014-09-22 | 62053732 | TREATMENT OF HYPERKALEMIA USING HIGH ZS-9 MICROPOROUS ZIRCONIUM SILICATE | ZS PHARMA, INC. | Provisional Application Expired | Donald Jeffrey Keyser Alvaro F. Guillem | United States United States | ||
| 2014-06-20 | 62015215 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS Pharma, Inc. | Provisional Application Expired | Donald Jeffrey KEYSER Alvaro F. GUILLEM | United States United States | ||
| 2014-05-30 | 62005484 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC. | Provisional Application Expired | Donald Jeffrey KEYSER Alvaro F. GUILLEM | United States United States | ||
| 2014-04-03 | PCTUS2014032815 | MICROPOROUS ZIRCONIUM SILICATE AND DIURETICS FOR THE REDUCTION OF POTASSIUM AND TREATMENT OF CHRONIC KIDNEY AND/ | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | THOMAS, SHANE M | |
| 2013-12-10 | 61914362 | Microporous Zirconium Silicate and Diuretics for the Reduction of Potassium and Treatment of Chronic Kidney and/ | ZS PHARMA, INC. | Provisional Application Expired | Donald Jeffrey KEYSER Alvaro F. GUILLEM | United States United States | ||
| 2013-10-22 | PCTUS2013066207 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | THOMAS, SHANE M | |
| 2013-07-11 | PCTUS2013050071 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA IN HYPERCALCEMIC PATIENTS AND IMPROVED CALCIUM-CONTAINING COMPOSITIONS FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | THOMAS, SHANE M | |
| 2013-06-11 | PCTUS2013045219 | IMPROVED MICROPOROUS ZIRCONIUM SILICATE AND ITS METHOD OF PRODUCTION | ZS PHARMA, INC. | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | THOMAS, SHANE M | |
| 2012-10-22 | 61716956 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC. | Provisional Application Expired | Donald Jeffrey KEYSER Alvaro F. Guillem | United States United States | ||
| 2012-02-10 | PCTUS2012024727 | MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA | ZS PHARMA, INC | RO PROCESSING COMPLETED-PLACED IN STORAGE | ALVARO F. GUILLEM DONALD JEFFREY KEYSER | United States United States | THOMAS, SHANE M |