Prosecution Insights
Last updated: October 02, 2026

Examiner: DUFFY, BRADLEY

Tech Center 1600 • Art Units: 1643

This examiner grants 54% of resolved cases

Analysis

Bradley Duffy is an examiner in Art Unit 1643 of Tech Center 1600. With 752 resolved cases, the examiner has an allowance rate of 54.5%. This rate indicates a moderate probability of success for patent applicants. The median days to allowance is 1364, providing a timeline for successful prosecution.

The interview lift is 45.8%, suggesting that interviews are an effective way to increase the chances of allowance relative to the 54.5% baseline. Practitioners should strongly consider an interview to take advantage of the 45.8% lift. The 752 resolved cases offer a robust data set.

In Tech Center 1600, the 54.5% allowance rate and 1364-day median timeline offer a strategic path for applicants in Art Unit 1643. Utilizing the 45.8% interview lift can significantly improve outcomes. These data points are essential for informed decision-making.

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

Performance Statistics

54.5%
Allow Rate
-5.5% vs TC avg
798
Total Applications
+45.8%
Interview Lift
1364
Avg Prosecution Days
Based on 752 resolved cases, 2023–2026

Rejection Statute Breakdown

4.2%
§101 Eligibility
19.4%
§102 Novelty
29.1%
§103 Obviousness
31.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17575762 CHIMERIC ANTIGEN RECEPTOR COMPRISING INTERLEUKIN-15 INTRACELLULAR DOMAIN AND USES THEREOF Final Rejection University of Florida Research Foundation, Incorporated
19637868 Subcutaneous Formulations Of Anti-CD38 Antibodies And Their Uses Non-Final OA Janssen Biotech, Inc.
19637933 Subcutaneous Formulations Of Anti-CD38 Antibodies And Their Uses Non-Final OA Janssen Biotech, Inc.
19277274 COMPOSITIONS AND METHODS RELATED TO POTENT CYTOTOXIC M-CENK CELLS FROM CD3/CD14-DEPLETED APHERESIS PRODUCTS Final Rejection ImmunityBio, Inc.
18691685 COMPOSITIONS OF CHIMERIC ANTIGEN RECEPTOR (CAR) SIGNALING MOLECULES AND USES THEREOF Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18491633 METHODS AND COMPOSITIONS FOR ADOPTIVE CELL THERAPY Final Rejection Juno Therapeutics, Inc.
18169293 AMHR2-ED CANCER VACCINE FORMULATIONS Final Rejection The Cleveland Clinic Foundation
17819745 PD-L1 ANTIBODIES BINDING CANINE PD-L1 Non-Final OA Intervet Inc.
17775063 ENGINEERING CHARGE PAIR MUTATIONS FOR PAIRING OF HETERO-IgG MOLECULES Final Rejection AMGEN INC.
18164304 TREATMENT OF ACUTE LYMPHOBLASTIC LEUKEMIA Non-Final OA AMGEN RESEARCH (MUNICH) GMBH
18066972 CROSS-SPECIES-SPECIFIC BINDING DOMAIN Non-Final OA Amgen Research (Munich) GmbH
18703318 ANTI-TSHR MULTI-SPECIFIC ANTIBODIES AND USES THEREOF Non-Final OA Sloan-Kettering Institute for Cancer Research
18043527 METHODS AND COMPOSITIONS FOR TARGETING CYTOSOLIC DSDNA SIGNALING IN CHROMOSOMALLY UNSTABLE CANCERS Non-Final OA MEMORIAL SLOAN KETTERING CANCER CENTER

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