Prosecution Insights
Last updated: October 27, 2026

Tewodros E Mengistu, USPTO Patent Examiner

Listed by the USPTO as MENGISTU, TEWODROS E

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

This examiner grants 50% of resolved cases

Analysis

MENGISTU, TEWODROS E works in Tech Center 2100 and Art Unit 2121. The profile contains 148 resolved cases, with an allowance rate of 50.0% and a median time to allowance of 1616 days. The interview lift is 31.1%, giving interviews a meaningful role in the available outcome record. The timing measure indicates that counsel should consider prosecution duration when planning responses, continuations, and client expectations.

The listed companies are Sony Group Corporation, Roku Inc., and The University of Tokyo. The listed firms are STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C., KDW Firm PLLC (1988), and OLIFF PLC. These recurring entities can help practitioners locate comparable matters and prepare focused interview materials, while the allowance figure supports careful evaluation of claim scope before prosecution resources are expanded.

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

Performance Statistics

50.0%
Allow Rate
-5.0% vs TC avg
177
Total Applications
+31.1%
Interview Lift
1616
Avg Prosecution Days
Based on 148 resolved cases, 2023–2026

Rejection Statute Breakdown

28.2%
§101 Eligibility
9.5%
§102 Novelty
45.5%
§103 Obviousness
14.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17388919 AUTOMATICALLY REDUCING MACHINE LEARNING MODEL INPUTS Non-Final OA Capital One Services, LLC
18453179 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM Final Rejection CANON KABUSHIKI KAISHA
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 Non-Final OA SONY GROUP CORPORATION
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.
17109824 FACTORIZED NEURAL NETWORK Final Rejection Microsoft Technology Licensing, LLC
18437118 DATA PROCESSING METHOD AND APPARATUS, PROGRAM PRODUCT, COMPUTER DEVICE, AND MEDIUM Non-Final OA Tencent Technology (Shenzhen) Company Limited
18230311 BATCH SCHEDULING FOR EFFICIENT EXECUTION OF MULTIPLE MACHINE LEARNING MODELS Final Rejection NVIDIA Corporation
18020691 Learning Device, Learning Method, Recording Medium Storing Learning Program, Control Program, Control Device, Control Method, and Recording Medium Storing Control Program Final Rejection OMRON Corporation
18686072 INFORMATION PROCESSING APPARATUS, AND RECORDING MEDIUM Non-Final OA THE UNIVERSITY OF TOKYO
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
18020606 METHOD OF DETERMINING FUSION PARAMETER, METHOD OF RECOMMENDING INFORMATION, AND METHOD OF TRAINING MODEL Final Rejection BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Tewodros E Mengistu's allowance rate?

50.0% of resolved applications examined by Tewodros E Mengistu were allowed (148 resolved cases), compared with 32.0% across Art Unit 2121 over the last five years.

Does an interview help with examiner Tewodros E Mengistu?

This examiner's interview lift is +31.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tewodros E Mengistu take to allow a patent?

Applications allowed by Tewodros E Mengistu took 1,616 days on average from filing to allowance.

Which art unit does examiner Tewodros E Mengistu work in?

Tewodros E Mengistu examines applications in Art Unit 2121 in Tech Center 2100 (Computing & Software).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month