Prosecution Insights
Last updated: April 19, 2026

Examiner: SZPERKA, MICHAEL EDWARD

Tech Center 1600 • Art Units: 1641 1644

This examiner grants 62% of resolved cases

Performance Statistics

62.1%
Allow Rate
+2.1% vs TC avg
969
Total Applications
+37.9%
Interview Lift
1137
Avg Prosecution Days
Based on 932 resolved cases, 2023–2026

Rejection Statute Breakdown

3.4%
§101 Eligibility
21.8%
§102 Novelty
22.1%
§103 Obviousness
31.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18030901 THERAPEUTIC AGENT FOR IMMUNE/INFLAMMATORY DISEASE Non-Final OA Takeda Pharmaceutical Company Limited
17284291 METHOD FOR PRODUCING ANTIBODY-DRUG CONJUGATE Final Rejection TAKEDA PHARMACEUTICAL COMPANY LIMITED
18249991 NATURAL KILLER CELLS WITH ENHANCED ACTIVITY Non-Final OA The Regents of the University of California
18048386 THERAPIES AND METHODS TO TREAT TLR2-MEDIATED DISEASES AND DISORDERS Final Rejection The Regents of the University of California
18252442 NOVEL LINKERS OF MULTISPECIFIC ANTIGEN BINDING DOMAINS Non-Final OA AMGEN INC.
17436696 GROWTH DIFFERENTIATION FACTOR 15 COMBINATION THERAPY Final Rejection Amgen Inc.
18242868 FACTOR X BINDERS ENHANCING FX ACTIVATION Final Rejection Novo Nordisk A/S
18060215 COMPOSITIONS AND METHODS FOR PURIFYING ALPHA-1 ANTITRYPSIN USING PEPTIDE LIGANDS Non-Final OA North Carolina State University
19230637 ANTICOAGULANT PROTEINS AND THEIR USE FOR TREATING DISEASES ASSOCIATED WITH THE ACTIVATION OF NEUTROPHILS Non-Final OA BIOXODES
18470044 RAPID ELICITATION OF BROADLY NEUTRALIZING BOVINE ANTIBODIES TO HIV ENV Final Rejection The Texas A&M University System
17868422 SYSTEMS AND METHODS FOR MONITORING PLATELET ACTIVATION Final Rejection The Regents of the University of Michigan
19086720 Antigen Binding Proteins Non-Final OA ViiV Healthcare UK (No.5) Limited
18034999 CHIMERIC ANTIGEN RECEPTOR Non-Final OA National University Corporation Tokai National Higher Education and Research System
17292319 METHODS AND COMPOSITIONS FOR TREATING OR PREVENTING THE DEVELOPMENT OF FOOD ALLERGIES Final Rejection THE CHILDREN'S MEDICAL CENTER CORPORATION
18250106 COMBINATION VACCINE FOR PROTECTING SWINE AGAINST VARIOUS DISORDERS Non-Final OA Intervet Inc.
18018936 DOSAGE AND ADMINISTRATION OF ANTI-C5 ANTIBODIES FOR TREATING HEMATOPOIETIC STEM CELL TRANSPLANT-ASSOCIATED THROMBOTIC MICROANGIOPATHY (HSCT-TMA) Non-Final OA Alexion Pharmaceuticals, Inc.
17784025 METHODS OF TREATING PREGNANCY-ASSOCIATED ATYPICAL HEMOLYTIC UREMIC SYNDROME USING AN ANTI-C5 ANTIBODY Non-Final OA Alexion Pharmaceuticals, Inc.
18030368 NOVEL ANTI-GLYCAN ANTIBODY AND USE THEREOF Non-Final OA NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
18452155 METHODS FOR PREVENTING OR TREATING ALLERGY BY ADMINISTERING AN IL-4R ANTAGONIST Final Rejection SANOFI BIOTECHNOLOGY
17996861 LUCIFERASE LINKED IMMUNOSORBENT ASSAY Non-Final OA INSTITUT PASTEUR
18305109 Tau Immunotherapy Non-Final OA Prothena Biosciences Limited
18246423 Recombinant Fusion Proteins Comprising Interleukin-18-Binding Protein and Antigen Binding Fragment to Serum Albumin, and Compositions and Uses Thereof Non-Final OA Aprilbio Co., Ltd.
18183465 Combinations of Modalities for the Treatment of Diabetes Non-Final OA Phaim Pharma Ltd.
18148888 COMPOSITIONS AND METHODS FOR TREATING ALLOGRAFT VASCULOPATHY, MOYAMOYA DISEASE, MOYAMOYA SYNDROME AND INTIMAL PROLIFERATION Non-Final OA Westfälische Wilhelms-Universität Münster

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