Prosecution Insights
Last updated: October 02, 2026

Examiner: DONOGHUE, BRITTNEY ERIN

Tech Center 1600 • Art Units: 1646 1649 1675

This examiner grants 59% of resolved cases

Analysis

Brittney Erin Donoghue examines cases in Tech Center 1600 and Art Unit 1646. She has 102 resolved cases, providing a solid statistical base. The allowance rate is 58.8%. This 58.8% rate suggests that more than half of the 102 cases result in a patent grant. Practitioners should use this 58.8% figure to estimate the probability of success.

The median days to allowance is 1310. This 1310-day timeline shows that prosecution in Art Unit 1646 can be a lengthy process. A median of 1310 days is a significant duration that practitioners should factor into their long-term planning. The 1310-day figure reflects the time needed to navigate the requirements of Tech Center 1600 under this examiner.

The interview lift is 46.5%, which is a very significant figure. A 46.5% lift indicates that conducting an interview dramatically increases the likelihood of an allowance. When compared to the 58.8% base allowance rate, the 46.5% lift makes a clear case for early examiner interviews. Practitioners should use this lift as a primary tactic to overcome rejections and shorten the 1310-day path to allowance.

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

Performance Statistics

58.8%
Allow Rate
-1.2% vs TC avg
148
Total Applications
+46.5%
Interview Lift
1310
Avg Prosecution Days
Based on 102 resolved cases, 2023–2026

Rejection Statute Breakdown

3.4%
§101 Eligibility
11.6%
§102 Novelty
37.1%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18222093 Dosing Regimen for Therapies Comprising Bispecific Anti-EGFR/C-Met Antibodies Non-Final OA Janssen Biotech, Inc.
18324380 INTERLEUKIN-2 PROPROTEINS AND USES THEREOF Non-Final OA Regeneron Pharmaceuticals, Inc.
17887565 IL27 RECEPTOR AGONISTS AND METHODS OF USE THEREOF Non-Final OA Regeneron Pharmaceuticals, Inc.
18274677 Astrocyte Interleukin-3 Reprograms Microglia and Limits Alzheimer`s Disease Non-Final OA The General Hospital Corporation
18158767 METHODS FOR TREATMENT OF SUBJECTS WITH PLAQUE PSORIASIS OF THE SCALP Final Rejection SUN PHARMACEUTICAL INDUSTRIES LIMITED
17600600 COMBINATIONS OF TRANSCRIPTION INHIBITORS AND IMMUNE CHECKPOINT INHIBITORS FOR TREATMENT OF DISEASE Non-Final OA Board of Regents, The University of Texas System
17798686 ANTI-CD137 ANTIGEN-BINDING MOLECULE FOR USE IN CANCER TREATMENT Non-Final OA Chugai Seiyaku Kabushiki Kaisha
17043537 PHARMACEUTICAL COMPOSITION FOR TREATMENT AND/OR PREVENTION OF CANCER Final Rejection TORAY INDUSTRIES, INC.
17785427 BIFUNCTIONAL MOLECULES COMPRISING AN IL-7 VARIANT Non-Final OA BOEHRINGER INGELHEIM INTERNATIONAL GMBH
18670375 METHODS OF USING ANTI-CD79B IMMUNOCONJUGATES TO TREAT DIFFUSE LARGE B-CELL LYMPHOMA Final Rejection Hoffmann-La Roche Inc.
17778361 NOVEL MULTISPECIFIC ANTIBODY FORMAT Final Rejection AMGEN INC.
17366648 NSP-INTERLEUKIN-10 PROTEINS AND USES THEREOF Non-Final OA UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
18548477 ANTI-CD38 ANTIBODIES FOR USE IN THE TREATMENT OF ANTIBODY-MEDIATED TRANSPLANT REJECTION Non-Final OA MORPHOSYS AG
18314240 OSTEOANABOLISM BY 14-3-3ZETA Final Rejection The University of Toledo
17265731 Enhanced Delivery of Drugs and Other Compounds to the Brain and Other Tissues Non-Final OA Duke University
17779704 CHIMERIC ANTIGEN RECEPTOR TO CARBOHYDRATE ANTIGENS Final Rejection YEDA RESEARCH AND DEVELOPMENT CO. LTD.

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