Prosecution Insights
Last updated: October 02, 2026

Examiner: SHALU, ZELALEM W

Tech Center 4100 • Art Units: 2122 2145 2148 2177 3628 4100

This examiner grants 32% of resolved cases

Analysis

Zelalem W. Shalu has handled 117 resolved cases in Art Unit 2122. The examiner maintains an allowance rate of 31.6 percent. This figure provides a baseline for applicants to understand the probability of a grant in Tech Center 4100. The data shows an interview lift of 20.4 percent. This lift represents the difference in allowance rates between cases with and without interviews. Practitioners should consider this 20.4 percent lift when deciding whether to engage in direct communication.

The median days to allowance for this examiner is 1315. This duration represents the timeline for reaching a final resolution for the 117 resolved cases. Applicants in Art Unit 2122 can use this 1315-day metric to plan their prosecution schedules. The 31.6 percent allowance rate indicates the frequency of grants for this profile. With an interview lift of 20.4 percent, the role of the interview is a documented factor in the examiner's history. These metrics provide a view of the prosecution environment for this profile in Tech Center 4100.

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

Performance Statistics

31.6%
Allow Rate
-28.4% vs TC avg
154
Total Applications
+20.4%
Interview Lift
1315
Avg Prosecution Days
Based on 117 resolved cases, 2023–2026

Rejection Statute Breakdown

12.6%
§101 Eligibility
7.1%
§102 Novelty
66.9%
§103 Obviousness
11.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17689115 METHOD OF GENERATING DEEP LEARNING MODEL AND COMPUTING DEVICE PERFORMING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
17969238 DISTANCE-BASED PAIR LOSS FOR COLLABORATIVE FILTERING Final Rejection THE TORONTO-DOMINION BANK
17922485 LEARNING DEVICE, LEARNING METHOD, AND LEARNING PROGRAM Final Rejection NEC Corporation
17281444 File Transfer Method and Electronic Device Final Rejection Huawei Technologies Co., Ltd.
18548135 DEVICE AND METHOD FOR TRAINING A MACHINE LEARNING SYSTEM FOR DENOISING AN INPUT SIGNAL Non-Final OA Robert Bosch GmbH
18059277 ADJUSTMENT OF TRAINING DATA SETS FOR FAIRNESS-AWARE ARTIFICIAL INTELLIGENCE MODELS Non-Final OA PAYPAL, INC.
17721993 OPTIMIZING TRAINING DATA GENERATION FROM REAL-TIME PREDICTION SYSTEMS FOR INTELLIGENT MODEL TRAINING Final Rejection PAYPAL, INC.
17673377 TIERED INPUT STRUCTURES FOR MACHINE LEARNING MODELS Final Rejection PAYPAL, INC.
17232671 DATASET-FREE, APPROXIMATE MARGINAL PERTURBATION-BASED FEATURE ATTRIBUTIONS Non-Final OA Oracle International Corporation
18403095 AUTOMATED CONTROL FOR A PHYSICAL SYSTEM WITH GENERIC FORECASTING MODELS Non-Final OA International Business Machines Corporation
18175006 PERSONALIZED FEDERATED LEARNING OF GRADIENT BOOSTED TREES Non-Final OA International Business Machines Corporation
17171365 MACHINE-LEARNING SYSTEMS FOR SIMULATING COLLABORATIVE BEHAVIOR BY INTERACTING USERS WITHIN A GROUP Final Rejection Adobe Inc.
18359643 FEATURE MANAGEMENT Final Rejection Lemon Inc.
18558191 ESTIMATION DEVICE, ESTIMATION METHOD, PROGRAM, AND LEARNING MODEL GENERATION DEVICE Non-Final OA BRIDGESTONE CORPORATION
16110103 CROWDSOURCED TRAINING FOR COMMANDS MATCHING Final Rejection Peloton Interactive, Inc.
18405500 OVERCOMING TECHNICAL CHALLANGES OF WORKING IN A VERY HIGH DIMENSIONAL SPACE Non-Final OA AUTOBRAINS TECHNOLOGIES LTD

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