Prosecution Insights
Last updated: April 19, 2026

Examiner: PATTERSON, SARAH COOPER

Tech Center 1600 • Art Units: 1675

This examiner grants 64% of resolved cases

Performance Statistics

64.0%
Allow Rate
+4.0% vs TC avg
99
Total Applications
+53.2%
Interview Lift
1254
Avg Prosecution Days
Based on 25 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
11.2%
§102 Novelty
25.6%
§103 Obviousness
34.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17692755 IL15/IL15Ralpha HETERODIMERIC Fc-FUSION PROTEINS Non-Final OA Xencor, Inc.
17849075 METHODS AND COMPOSITIONS FOR INHIBITING P97 Final Rejection California Institute of Technology
17786375 INTERLEUKIN-2 IN COMBINATION WITH TNF RECEPTOR FAMILY MEMBERS FOR THE EXPANSION OF T-REGULATORY CELLS Final Rejection AMGEN INC.
19289532 CLADRIBINE REGIMEN FOR TREATING MULTIPLE SCLEROSIS Final Rejection MERCK SERONO SA
17769722 NEONATAL FC RECEPTOR BINDING AFFIMERS Final Rejection LG CHEM, LTD.
17872225 METHODS FOR TREATING CHRONIC SPONTANEOUS URTICARIA BY ADMINISTERING AN IL-4R ANTAGONIST Final Rejection REGENERON PHARMACEUTICALS, INC.
19237968 DUAL CSF1-IL-10 CYTOKINE Final Rejection FUNDACIÓ CENTRE DE REGULACIÓ GENÒMICA
17419870 HARNESSING INFLAMMATION TO TREAT NEURODEVELOPMENTAL DISORDERS Final Rejection Massachusetts Institute of Technology
17920503 STRUCTURALLY-STABILIZED AND HDMX-SELECTIVE P53 PEPTIDES AND USES THEREOF Non-Final OA Dana-Farber Cancer Institute, Inc.
17774298 HLA RESTRICTED HORMAD1 T CELL RECEPTORS AND USES THEREOF Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
17764104 IMMUNOGENIC EGFR PEPTIDE COMPOSITIONS AND THEIR USE IN THE TREATMENT OF CANCER Final Rejection Board of Regents, The University of Texas System
17635760 CIRCULAR RNA MODIFICATION AND METHODS OF USE Final Rejection The Board of Trustees of the Leland Stanford Junior University
17622504 METHODS AND MATERIALS FOR TARGETED EXPANSION OF REGULATORY T CELLS Non-Final OA The Johns Hopkins University
17769642 COMPOSITIONS AND METHODS FOR INHIBITION OF CELL-PENETRATING ANTIBODIES Non-Final OA Yale University
18302630 METHOD OF CREATING HUMAN PLURIPOTENT STEM CELL DERIVED BRAIN PERICYTE-LIKE CELLS Non-Final OA Wisconsin Alumni Research Foundation
17799503 NOVEL T CELL RECEPTORS (TCRS) THAT REACT TO NEOANTIGENS Non-Final OA H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.
17210454 COMPOSITIONS AND METHODS FOR TREATMENT OF INTRACELLULAR DAMAGE AND BACTERIAL INFECTION Final Rejection Prince Biotech, LLC
17906467 MULTIVALENT CHEMOKINE RECEPTOR BINDING COMPLEXES Non-Final OA CITY OF HOPE
17870024 CHIMERIC ANTIGEN RECEPTOR T CELLS TARGETING CEA AND ANTI-CEA-IL2 IMMUNOCYTOKINES FOR CANCER THERAPY Non-Final OA City of Hope
17635625 TGF-beta TRAP Final Rejection NANTBIO, INC.
17442568 TREATMENT INVOLVING INTERLEUKIN-2 (IL2) AND INTERFERON (IFN) Final Rejection TRON-Translationale Onkologie an der Universitätsmedizin der Johannes Gutenberg-Universität Mainz
17914261 MASKED IL12 FUSION PROTEINS AND METHODS OF USE THEREOF Non-Final OA Zymeworks BC Inc.
17926673 IMPROVED GRANZYME B VARIANT Non-Final OA Chugai Seiyaku Kabushiki Kaisha
17599921 Fc-MODIFIED BIOLOGICALS FOR LOCAL DELIVERY TO COMPARTMENT, IN PARTICULAR TO THE CNS Non-Final OA Universität Zürich
17763973 STING AGONIST COMPRISING EXOSOMES COMBINED WITH IL-12 DISPLAYING EXOSOMES FOR TREATING A TUMOUR Final Rejection LONZA SALES AG
18002613 Polypeptides Comprising Modified IL-2 Polypeptides and Uses Thereof Non-Final OA Inhibrx Biosciences, Inc.
17798774 TISSUE TARGETED IMMUNOTOLERANCE WITH PD-1 AGONISTS OR IL-2 MUTEINS Non-Final OA PANDION OPERATIONS, INC.
17777088 INTERLEUKIN 15 FUSION PROTEINS AND PRODRUGS, AND COMPOSITIONS AND METHODS THEREOF Non-Final OA IMMUNE TARGETING INC.
17911922 INTERLEUKIN-2 MUTANT AND USE THEREOF Non-Final OA FORTVITA BIOLOGICS (SINGAPORE) PTE. LTD.
17490516 MULTIMERIC T-CELL MODULATORY POLYPEPTIDES AND METHODS OF USE THEREOF Final Rejection Cue Biopharma, Inc.

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