Prosecution Insights
Last updated: October 27, 2026

Brittney Erin Donoghue, USPTO Patent Examiner

Listed by the USPTO as DONOGHUE, BRITTNEY ERIN

Tech Center 1600 • Art Units: 1644 1646 1649 1675

This examiner grants 59% of resolved cases

Analysis

DONOGHUE, BRITTNEY ERIN is assigned to tech center 1600 and art unit 1644. The profile includes 104 resolved cases, a 58.7% allowance rate, and a median of 1318 days to allowance. The 47.4% interview lift is substantial relative to the allowance rate, making interview preparation a prominent consideration for applicants.

The leading companies are Regeneron Pharmaceuticals Inc., BEIJING HANMI PHARMACEUTICAL CO., LTD., and The Brigham and Women's Hospital Inc. The leading firms are Biospark Intellectual Property Law, CANTOR COLBURN LLP, and Ballard Spahr LLP. The limited case record supports a careful, application-specific reading of the measures.

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

Performance Statistics

58.7%
Allow Rate
-1.3% vs TC avg
157
Total Applications
+47.4%
Interview Lift
1318
Avg Prosecution Days
Based on 104 resolved cases, 2023–2026

Rejection Statute Breakdown

3.4%
§101 Eligibility
12.5%
§102 Novelty
36.5%
§103 Obviousness
29.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18670375 METHODS OF USING ANTI-CD79B IMMUNOCONJUGATES TO TREAT DIFFUSE LARGE B-CELL LYMPHOMA Final Rejection Hoffmann-La Roche Inc.
17785427 BIFUNCTIONAL MOLECULES COMPRISING AN IL-7 VARIANT Non-Final OA BOEHRINGER INGELHEIM INTERNATIONAL GMBH
18769216 Targeted IL-12 Treatments and Methods to Stimulate haNK and NK92mi Cells Non-Final OA NantBio, Inc.
18274677 Astrocyte Interleukin-3 Reprograms Microglia and Limits Alzheimer`s Disease Non-Final OA The General Hospital Corporation
18612039 METHODS FOR TREATING CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) BY ADMINISTERING AN IL-4R ANTAGONIST Non-Final OA REGENERON PHARMACEUTICALS, 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.
18158767 METHODS FOR TREATMENT OF SUBJECTS WITH PLAQUE PSORIASIS OF THE SCALP Final Rejection SUN PHARMACEUTICAL INDUSTRIES LIMITED
17778361 NOVEL MULTISPECIFIC ANTIBODY FORMAT Final Rejection AMGEN INC.
17600600 COMBINATIONS OF TRANSCRIPTION INHIBITORS AND IMMUNE CHECKPOINT INHIBITORS FOR TREATMENT OF DISEASE Non-Final OA Board of Regents, The University of Texas System
18466911 PD-1 AGONIST ANTIBODIES Non-Final OA Otsuka Pharmaceutical Co., Ltd.

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Frequently Asked Questions

What is examiner Brittney Erin Donoghue's allowance rate?

58.7% of resolved applications examined by Brittney Erin Donoghue were allowed (104 resolved cases), compared with 35.9% across Art Unit 1644 over the last five years.

Does an interview help with examiner Brittney Erin Donoghue?

This examiner's interview lift is +47.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Brittney Erin Donoghue take to allow a patent?

Applications allowed by Brittney Erin Donoghue took 1,318 days on average from filing to allowance.

Which art unit does examiner Brittney Erin Donoghue work in?

Brittney Erin Donoghue examines applications in Art Unit 1644 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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