Prosecution Insights
Last updated: October 02, 2026

Examiner: MENGISTU, TEWODROS E

Tech Center 2100 • Art Units: 2121 2122 2127 2148 2165

This examiner grants 50% of resolved cases

Analysis

Tewodros E. Mengistu examines cases in Art Unit 2121 of Tech Center 2100. With 147 resolved cases, the allowance rate is 49.7%. The interview lift is 30.7%, which is a key strategy for overcoming the moderate allowance rate. This 30.7% lift indicates that interviews are highly effective in this docket. The median days to allowance is 1616, indicating a very long prosecution process.

Practitioners should use interviews early to navigate the 1616-day pendency and improve the 49.7% chance of allowance. With 147 resolved cases, the data set is sufficient to show the significant impact of direct examiner engagement. In Art Unit 2121, the long duration of prosecution makes the 30.7% lift a vital tool for efficiency. Applicants should be prepared for a multi-year commitment but can use interviews to significantly boost their odds of success.

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

Performance Statistics

49.7%
Allow Rate
-5.3% vs TC avg
170
Total Applications
+30.7%
Interview Lift
1616
Avg Prosecution Days
Based on 147 resolved cases, 2023–2026

Rejection Statute Breakdown

28.1%
§101 Eligibility
9.3%
§102 Novelty
46.2%
§103 Obviousness
13.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17388919 AUTOMATICALLY REDUCING MACHINE LEARNING MODEL INPUTS Non-Final OA Capital One Services, LLC
18318143 Use of a Training Framework of a Multi-Class Model to Train a Multi-Label Model Non-Final OA PayPal, Inc.
18571740 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM Non-Final OA Sony Group Corporation
18043623 MEDICAL ARM CONTROL SYSTEM, MEDICAL ARM DEVICE, MEDICAL ARM CONTROL METHOD, AND PROGRAM Final Rejection SONY GROUP CORPORATION
18437118 DATA PROCESSING METHOD AND APPARATUS, PROGRAM PRODUCT, COMPUTER DEVICE, AND MEDIUM Non-Final OA Tencent Technology (Shenzhen) Company Limited
18498257 SYSTEMS AND METHODS FOR LANGUAGE AGENT OPTIMIZATION Non-Final OA Salesforce, Inc.
18392877 HYBRID MACHINE LEARNING CLASSIFIERS FOR MANAGING USER REPORTS Final Rejection Roku, Inc.
18204048 HYBRID MACHINE LEARNING CLASSIFIERS FOR USER RESPONSE STATEMENTS Final Rejection Roku, Inc.
18230311 BATCH SCHEDULING FOR EFFICIENT EXECUTION OF MULTIPLE MACHINE LEARNING MODELS Final Rejection NVIDIA Corporation
18139016 MULTI-TRACK MACHINE LEARNING MODEL TRAINING USING EARLY TERMINATION IN CLOUD-SUPPORTED PLATFORMS Final Rejection NVIDIA Corporation
18685966 LABEL GENERATION METHOD, MODEL GENERATION METHOD, LABEL GENERATION DEVICE, LABEL GENERATION PROGRAM, MODEL GENERATION DEVICE, AND MODEL GENERATION PROGRAM Non-Final OA The University of Tokyo
17850517 IMPLEMENTATION OF POOLING AND UNPOOLING OR REVERSE POOLING IN HARDWARE Final Rejection Imagination Technologies Limited

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