Prosecution Insights
Last updated: October 01, 2026

Examiner: BREEN, KIMBERLY CATHERINE

Tech Center 1600 • Art Units: 1651 1653 1657 1675

This examiner grants 24% of resolved cases

Analysis

Kimberly Catherine Breen is an examiner in Tech Center 1600 and Art Unit 1651. The examiner has 80 resolved cases and an allowance rate of 23.8 percent. This rate indicates a challenging prosecution environment where a minority of cases reach allowance. The median days to allowance for these successful cases is 1257.

The interview lift is 56.9 percent. This figure indicates that conducting an interview is associated with a higher likelihood of allowance compared to the 23.8 percent base rate. Practitioners should consider the 56.9 percent lift as a primary tactic for navigating Art Unit 1651.

The 80 resolved cases provide a basis for understanding the 1257 day timeline. The 23.8 percent allowance rate reflects the examiner's historical approach to applications. By utilizing the 56.9 percent lift, applicants may improve their outcomes in Tech Center 1600. This profile provides a data-grounded view of the prosecution environment.

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

Performance Statistics

23.8%
Allow Rate
-36.2% vs TC avg
137
Total Applications
+56.9%
Interview Lift
1257
Avg Prosecution Days
Based on 80 resolved cases, 2023–2026

Rejection Statute Breakdown

9.3%
§101 Eligibility
8.9%
§102 Novelty
36.2%
§103 Obviousness
31.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18844384 MUTANT L-THREONINE-RELEASING PROTEIN AND METHOD FOR PRODUCING L-THREONINE USING SAME Non-Final OA CJ CHEILJEDANG CORPORATION
18191716 METHOD OF PRODUCING GAMMA-BUTYROLACTONE FROM BIOMASS Non-Final OA CJ CHEILJEDANG CORPORATION
17597922 COMPOSITIONS AND METHODS FOR INHIBITING BACTERIAL VIRULENCE AND FLIM-BASED DEVICE AND METHOD FOR ANTIBIOTIC SUSCEPTIBILITY TESTING Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
16959998 PROBIOTICS, METABOLITES, AND USES THEREOF Final Rejection California Institute of Technology
18566018 METHODS AND COMPOSITIONS RELATED TO A MODIFIED METHYLTRANSFERASE Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
17219111 Compositions and Methods for Inhibiting Growth of Lactic Acid Producing Bacteria Final Rejection University of Kentucky Research Foundation
18687521 LAUNDRY COMPOSITIONS FOR CLEANING Non-Final OA Danisco US Inc.
17774437 COMPOSITIONS AND METHODS FOR ENHANCED PROTEIN PRODUCTION IN BACILLUS CELLS Final Rejection DANISCO US INC.
18618868 PROCESS AND PLANT Final Rejection Cemvita Factory, Inc.
17904119 BIOCATALYST ADAPTATION AS LOAD FOLLOWING SOLUTION Final Rejection ELECTROCHAEA GMBH

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