Prosecution Insights
Last updated: April 19, 2026

Alexion Pharmaceuticals, Inc.

15 pending office actions

Portfolio Summary

15
Total Pending OAs
3
Final Rejections
12
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18292042 METHODS OF TREATING COPPER METABOLISM-ASSOCIATED DISEASES OR DISORDERS RONEY, CELESTE A 1612 Non-Final OA Jan 25, 2024
18219138 ANTI-C5 ANTIBODIES HAVING IMPROVED PHARMACOKINETICS NATARAJAN, MEERA 1643 Non-Final OA Jul 07, 2023
18032959 METHODS OF TREATING PATIENTS HAVING COMPLEMENT DISORDERS USING ANTI-C5 ANTIBODIES LANDSMAN, ROBERT S 1647 Non-Final OA Apr 20, 2023
18029525 METHODS OF TREATING DERMATOMYOSITIS BRISTOL, LYNN ANNE 1643 Non-Final OA Mar 30, 2023
18018936 DOSAGE AND ADMINISTRATION OF ANTI-C5 ANTIBODIES FOR TREATING HEMATOPOIETIC STEM CELL TRANSPLANT-ASSOCIATED THROMBOTIC MICROANGIOPATHY (HSCT-TMA) SZPERKA, MICHAEL EDWARD 1641 Non-Final OA Jan 31, 2023
18011807 DOSAGE AND ADMINISTRATION OF ANTI-C5 ANTIBODIES FOR TREATING PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) IN PEDIATRIC PATIENTS BERHANE, SELAM 1675 Non-Final OA Dec 20, 2022
18010076 METHODS FOR TESTING ANDEXANET POTENCY FAN, LYNN Y 1759 Final Rejection Dec 13, 2022
17924610 CIRCULATING B CELL SUBPOPULATIONS IN INDOLENT B CELL LYMPHOMA SEITZ, ANTHONY JOSEPH 1629 Non-Final OA Nov 10, 2022
17923148 METHOD OF USING EXTRACELLULAR VESICLES TO DETECT COMPLEMENT ACTIVATION, AND USES THEREOF TO ASSESS AND/OR MONITOR TREATMENT OF A COMPLEMENT-MEDIATED DISEASE MARCSISIN, ELLEN JEAN 1677 Non-Final OA Nov 03, 2022
17920499 PROTEIN A CHROMATOGRAPHY PURIFICATION OF AN ANTIBODY HUANG, MICKEY NMN 1758 Final Rejection Oct 21, 2022
17838115 METHOD AND SYSTEM FOR IMPROVED MANAGEMENT OF GENETIC DISEASES MINCHELLA, KAITLYN L 1685 Non-Final OA Jun 10, 2022
17784025 METHODS OF TREATING PREGNANCY-ASSOCIATED ATYPICAL HEMOLYTIC UREMIC SYNDROME USING AN ANTI-C5 ANTIBODY SZPERKA, MICHAEL EDWARD 1641 Non-Final OA Jun 09, 2022
17738131 HIGH CONCENTRATION ANTI-C5 ANTIBODY FORMULATIONS KIM, YUNSOO 1641 Non-Final OA May 06, 2022
17641907 METHODS OF MEASURING COPPER CONCENTRATION IN BIOLOGICAL SAMPLES XU, XIAOYUN 1797 Non-Final OA Mar 10, 2022
17630601 METHODS FOR TREATMENT OF REFRACTORY GENERALIZED MYASTHENIA GRAVIS WITH ECULIZUMAB CHATTIN, AMY MARIE 1643 Final Rejection Jan 27, 2022

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