X4 PHARMACEUTICALS, INC Active Patents
18 granted patents the USPTO still lists as patented, 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.
- 2025-07-15: Application 19269675; Invention METHODS FOR TREATING NEUTROPENIA; Applicant X4 Pharmaceuticals, Inc.; Status Patented Case.
- 2025-03-31: Application 19096210; Invention METHODS FOR TREATING NEUTROPENIA; Applicant X4 Pharmaceuticals, Inc.; Status Patented Case.
- 2023-05-04: Application 18312484; Invention COMPOSITIONS OF CXCR4 INHIBITORS AND METHODS OF PREPARATION AND USE; Applicant X4 Pharmaceuticals, Inc.; Status Patented Case.
- 2022-09-09: Application 17941509; Invention METHODS FOR TREATING NEUTROPENIA; Applicant X4 Pharmaceuticals, Inc.; Status Patented Case.
| Filed | Application | Invention | Applicant | Status | Granted | Patent | Published as | Inventor name | Inventor country | Examiner |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-07-15 | 19269675 | METHODS FOR TREATING NEUTROPENIA | X4 Pharmaceuticals, Inc. | Patented Case | 2026-09-08 | 12728125 | US20250339423A1 | E. Lynne Kelley Sarah Cohen | United States United States | CORNET, JEAN P |
| 2025-03-31 | 19096210 | METHODS FOR TREATING NEUTROPENIA | X4 Pharmaceuticals, Inc. | Patented Case | 2025-08-05 | 12377090 | US20250248991A1 | E. Lynne Kelley Sarah Cohen | United States United States | CORNET, JEAN P |
| 2023-05-04 | 18312484 | COMPOSITIONS OF CXCR4 INHIBITORS AND METHODS OF PREPARATION AND USE | X4 Pharmaceuticals, Inc. | Patented Case | 2024-10-15 | 12115156 | US20240058322A1 | Karel Marie Joseph BRANDS | Italy | SEAMAN, D MARGARET M |
| 2022-09-09 | 17941509 | METHODS FOR TREATING NEUTROPENIA | X4 Pharmaceuticals, Inc. | Patented Case | 2025-04-29 | 12285424 | US20230014231A1 | E. Lynne KELLEY Sarah COHEN | United States United States | CORNET, JEAN P |
| 2022-03-14 | 17654722 | CXCR4 INHIBITORS AND USES THEREOF | X4 Pharmaceuticals, Inc. | Patented Case | 2023-10-10 | 11780837 | US20220372032A1 | Elyse Marie Josee BOURQUE Renato SKERLJ | Canada United States | KOSACK, JOSEPH R |
| 2021-06-25 | 17359391 | COMPOSITIONS OF CXCR4 INHIBITORS AND METHODS OF PREPARATION AND USE | X4 Pharmaceuticals, Inc. | Patented Case | 2023-06-13 | 11672793 | US20220008410A1 | Karel Marie Joseph Brands | United States | SEAMAN, D MARGARET M |
| 2020-07-27 | 16939723 | CXCR4 INHIBITORS AND USES THEREOF | X4 Pharmaceuticals, Inc. | Patented Case | 2022-04-19 | 11306088 | US20210047320A1 | Elyse Marie Josee Bourque Renato Skerlj | Canada United States | KOSACK, JOSEPH R |
| 2020-02-28 | 16804863 | METHODS FOR TREATING IMMUNODEFICIENCY DISEASE | X4 Pharmaceuticals, Inc. | Patented Case | 2022-01-11 | 11219621 | US20200268739A1 | Robert D. Arbeit Paula Marie Ragan | United States United States | RAO, SAVITHA M |
| 2019-12-05 | 16704302 | COMPOSITIONS OF CXCR4 INHIBITORS AND METHODS OF PREPARATION AND USE | X4 Pharmaceuticals, Inc. | Patented Case | 2021-06-29 | 11045461 | US20200253953A1 | Karel Marie Joseph Brands | United States | SEAMAN, D MARGARET M |
| 2018-12-21 | 16229223 | MDR E. COLI SPECIFIC ANTIBODY | X4 PHARMACEUTICALS (AUSTRIA) GMBH | Patented Case | 2021-03-09 | 10940191 | US20190111121A1 | Eszter NAGY Gábor NAGY Valéria SZIJÁRTO Zoltán MAGYARICS Irina MIRKINA Luis GUACHALLA Adriana BADARAU Gerhild ZAUNER Jolanta LUKASIEWICZ | Austria Hungary Austria Austria Austria Austria Austria Austria Poland | GANGLE, BRIAN J |
| 2018-12-18 | 16311083 | CXCR4 INHIBITORS AND USES THEREOF | X4 Pharmaceuticals, Inc. | Patented Case | 2021-04-27 | 10988465 | US20200255414A1 | Elyse Marie Josee Bourque Renato Skerlj | United States United States | STOCKTON, LAURA LYNNE |
| 2018-12-18 | 16311055 | CXCR4 INHIBITORS AND USES THEREOF | X4 Pharmaceuticals, Inc. | Patented Case | 2022-05-17 | 11332470 | US20190322671A1 | Elyse Marie Josee Bourque Renato Skerlj | United States United States | WARD, PAUL V |
| 2018-12-18 | 16311020 | CXCR4 INHIBITORS AND USES THEREOF | X4 Pharmaceuticals, Inc. | Patented Case | 2020-09-01 | 10759796 | US20200123150A1 | Elyse Marie Josee Bourque Renato Skerlj | United States United States | KOSACK, JOSEPH R |
| 2018-12-11 | 16215963 | COMPOSITIONS OF CXCR4 INHIBITORS AND METHODS OF PREPARATION AND USE | X4 Pharmaceuticals, Inc. | Patented Case | 2020-02-04 | 10548889 | Karel Marie Joseph Brands | United States | SEAMAN, D MARGARET M | |
| 2018-10-05 | 16091689 | METHODS FOR TREATING CANCER | X4 Pharmaceuticals, Inc. | Patented Case | 2022-05-24 | 11337969 | US20190160051A1 | Robert D. Arbeit | United States | KOSTURKO, GEORGE W |
| 2018-06-22 | 16065470 | METHODS FOR TREATING IMMUNODEFICIENCY DISEASE | X4 Pharmaceuticals, Inc. | Patented Case | 2020-04-07 | 10610527 | US20190083485A1 | Robert D. Arbeit Paula Marie Ragan | United States United States | RAO, SAVITHA M |
| 2017-08-17 | 15551813 | ANTIBODIES TARGETING A GALACTAN-BASED O-ANTIGEN OF K. PNEUMONIAE | X4 PHARMACEUTICALS (AUSTRIA) GMBH | Patented Case | 2022-10-11 | 11466074 | US20180066041A1 | Valeria SZIJÁRTO Gábor NAGY Luis GUACHALLA Zehra VISRAM Eszter NAGY Jolanta Katarzyna LUKASIEWICZ | Austria Hungary Austria Austria Austria Poland | DEVI, SARVAMANGALA |
| 2016-12-09 | 15373528 | MDR E. COLI SPECIFIC ANTIBODY | X4 PHARMACEUTICALS (AUSTRIA) GMBH | Patented Case | 2019-02-19 | 10206992 | US20170087236A1 | Eszter NAGY Gábor NAGY Valéria SZIJÂRTO Zoltàn MAGYARICS Irina MIRKINA Luis GUACHALLA Adriana BADARAU Gerhild ZAUNER Jolanta LUKASIEWICZ | Austria Hungary Austria Austria Austria Austria Austria Austria Poland | GANGLE, BRIAN J |
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