Prosecution Insights
Last updated: October 25, 2026

Ileana Popa, USPTO Patent Examiner

Listed by the USPTO as POPA, ILEANA

Tech Center 1600 • Art Units: 1600 1633 1663

This examiner grants 22% of resolved cases

Analysis

Ileana Popa has 849 resolved cases in Tech Center 1600 and Art Unit 1600. The profile records a 21.7% allowance rate and a median of 1716 days to allowance. Interviews are associated with a 15.7% lift in the allowance rate. The allowance and pendency figures indicate that applicants should plan for extended prosecution and carefully manage claim amendments, evidence, and continuation decisions.

The leading companies are Janssen Pharmaceuticals Inc., The United States Department of Health and Human Services, and Translate Bio Inc. The leading firms are SUGHRUE MION, PLLC, Lathrop GPM LLP | Sanofi-Aventis, and Adams & Reese LH. The profile provides relevant context for pharmaceutical and biotechnology applications.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

21.7%
Allow Rate
-38.3% vs TC avg
913
Total Applications
+15.7%
Interview Lift
1716
Avg Prosecution Days
Based on 849 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
7.7%
§102 Novelty
48.1%
§103 Obviousness
21.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18711131 Method of Treating Geographic Atrophy with a Gene Therapy Vector Expressing Soluble CD59 Non-Final OA Janssen Biotech, Inc.
18583364 Neoantigens Expressed In Ovarian Cancer And Their Uses Non-Final OA Janssen Biotech, Inc.
17054393 METHODS OF SUPPRESSING PATHOGENIC MUTATIONS USING PROGRAMMABLE BASE EDITOR SYSTEMS Final Rejection Beam Therapeutics Inc.
18088544 POLYMERIC NANOPARTICLES AND DERIVATIVES THEREOF FOR NUCLEIC ACID BINDING AND DELIVERY Final Rejection University of Massachusetts
19392021 COMPOSITIONS AND METHODS FOR TREATING GENETIC DISORDERS Final Rejection Fundación para la Investigación Biomédica del Hospital Infantil Universitario Niño Jesús
17925470 FUNCTIONAL LIPID DERIVATIVES AND USES THEREOF Final Rejection Ohio State Innovation Foundation
18561253 PRODUCTION PROCESSES FOR HIGHLY VIABLE, ENGRAFTABLE HUMAN CHONDROCYTES FROM STEM CELLS Non-Final OA University of Southern California
18068922 MAMMALIAN CELL CULTURE Non-Final OA AMGEN INC.
17925404 NOVEL LIPIDS AND NANOPARTICLE COMPOSITIONS THEREOF Final Rejection Generation Bio Co.
18022415 METHOD FOR IN VITRO PRODUCTION OF RED BLOOD CELLS Final Rejection IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
18555385 SIGNAL PEPTIDES Non-Final OA IMPERIAL COLLEGE INNOVATIONS LIMITED
15327794 SUBSET-OPTIMIZED CHIMERIC ANTIGEN RECEPTOR-CONTAINING T-CELLS Final Rejection The Trustees of the University of Pennsylvania
17189368 TELOMERASE REVERSE TRANSCRIPTASE-BASED THERAPIES Final Rejection Universitat Autònoma de Barcelona
18249037 GLYCOSYLTRANSFERASE VARIANTS FOR IMPROVED PROTEIN PRODUCTION Final Rejection Novozymes A/S
19010148 MATERIALS AND METHODS FOR TREATMENT OF HEREDITARY HAEMOCHROMATOSIS Non-Final OA CRISPR Therapeutics AG
18976790 VIRAL GENE THERAPY AS TREATMENT FOR CHOLESTEROL STORAGE DISEASE OR DISORDER Non-Final OA The United States of America, as represented by the Secretary, Department of Health and Human Servi
18465333 COMPOSITONS AND METHODS FOR USE OF KALIUM CHANNEL RHODOPSINS Non-Final OA BAYLOR COLLEGE OF MEDICINE
18958046 Compositions and Methods for Cancer Immunotherapy Non-Final OA The UAB Research Foundation
18003646 C825 EXPRESSING IMMUNE CELLS AND DIAGNOSTIC USES THEREOF Non-Final OA Memorial Sloan Kettering Cancer Center
18013789 MEDIUM COMPOSITION FOR PREPARATION OF INTESTINAL ORGANOID Non-Final OA ORGANOIDSCIENCES LTD.
18890983 STEREOCHEMICALLY ENRICHED COMPOSITIONS FOR DELIVERY OF NUCLEIC ACIDS Non-Final OA TRANSLATE BIO, INC.
17450629 PROCESS OF PREPARING MRNA-LOADED LIPID NANOPARTICLES Non-Final OA Translate Bio, Inc.
18853473 ADENO-ASSOCIATED VIRUS POTENCY ASSAY AND USES THEREOF Non-Final OA ASTELLAS GENE THERAPIES, INC.
17496530 LIPIDS AND LIPID NANOPARTICLE FORMULATIONS FOR DELIVERY OF NUCLEIC ACIDS Final Rejection Acuitas Therapeutics, Inc.
18816718 T CELLS FOR EXPRESSION OF CHIMERIC ANTIGEN RECEPTORS AND OTHER RECEPTORS Non-Final OA City of Hope
18093902 METHODS OF PRODUCING ENRICHED POPULATIONS OF TUMOR-REACTIVE T CELLS FROM TUMOR Non-Final OA The United States of America,as represented by the Secretary,Department of Health and Human Services
18557155 MICRODYSTROPHIN GENE THERAPY ADMINISTRATION FOR TREATMENT OF DYSTROPHINOPATHIES Non-Final OA REGENXBIO INC.
17799533 NUCLEIC ACID CONSTRUCT THAT CAN MEASURE HOMOLOGOUS RECOMBINATION ACTIVITY, AND METHOD FOR USING SAME Non-Final OA PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
18154229 SUPRAMOLECULAR CELL-BASED CARRIER, DRUG LOADING SYSTEM AND ITS PREPARATION METHOD Final Rejection University of Macau
18036472 GENETICALLY ENGINEERED YEAST CELLS AND METHODS OF USE THEREOF Final Rejection Berkeley Fermentation Science Inc.

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Frequently Asked Questions

What is examiner Ileana Popa's allowance rate?

21.7% of resolved applications examined by Ileana Popa were allowed (849 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Ileana Popa?

This examiner's interview lift is +15.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Ileana Popa take to allow a patent?

Applications allowed by Ileana Popa took 1,716 days on average from filing to allowance.

Which art unit does examiner Ileana Popa work in?

Ileana Popa examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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