Prosecution Insights
Last updated: October 02, 2026

Examiner: WENG, PEI YONG

Tech Center 4100 • Art Units: 2124 2126 2141 2173 2179 4100

This examiner grants 79% of resolved cases

Analysis

Pei Yong Weng has resolved 646 cases in Tech Center 4100, achieving a strong allowance rate of 79.4 percent. The median days to allowance is 1136, reflecting a timeline of 1136 days in Art Unit 2124. This examiner shows a high level of receptivity to patent applications, with many cases resulting in a grant. The 79.4 percent allowance rate is a very positive indicator for applicants.

The interview lift of 22.8 percent is a substantial benefit. It indicates that interviews are very effective at improving the 79.4 percent baseline allowance rate. Applicants should consider early interviews as a primary strategy to secure a grant and potentially navigate the 1136-day pendency more efficiently. The 22.8 percent lift suggests that the examiner is highly open to resolving issues through direct dialogue. Given the large volume of 646 cases, this examiner's approach is well-established and predictable. Practitioners can use the interview process to bridge any gaps in understanding and move toward a favorable resolution. The combination of a high allowance rate and a strong interview lift makes this a very favorable docket for prosecution in Art Unit 2124 across the 646 resolved cases.

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

Performance Statistics

79.4%
Allow Rate
+19.4% vs TC avg
665
Total Applications
+22.8%
Interview Lift
1136
Avg Prosecution Days
Based on 647 resolved cases, 2023–2026

Rejection Statute Breakdown

13.0%
§101 Eligibility
20.5%
§102 Novelty
55.8%
§103 Obviousness
7.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18456777 DATA MODEL DEVELOPMENT STANDARDIZATION Non-Final OA Wells Fargo Bank, N.A.
18481934 SPECIALIZED AND SELF-LEARNING NODES Final Rejection TOYOTA MOTOR NORTH AMERICA, INC.
18832227 INFERENCE APPARATUS, INFERENCE METHOD, AND STORAGE MEDIUM Non-Final OA NEC Corporation
18724528 Method for Obfuscating Device Functionality Non-Final OA Google LLC
18732926 Generating a Snippet Packet Based on a Selection of a Portion of a Web Page Final Rejection Google LLC
18681763 System and Methods for Training Machine-Learned Models for Use in Computing Environments with Limited Resources Non-Final OA Google LLC
18366273 MACHINE LEARNING BASED UPDATES OF DOMAIN SPECIFIC LANGUAGE PARAMETERS Final Rejection Capital One Services, LLC
18732251 AUTOMATED SELF-SUPERVISED MACHINE LEARNING SERVICES THROUGH UNIFIED MACHINE LEARNING ENABLERS Non-Final OA STRIPE, INC.
18658147 Camera Sensor with Shared Pixel Weighting Non-Final OA Wisconsin Alumni Research Foundation
18238337 CONTROL DEVICE, CONTROL SYSTEM, CONTROL METHOD, AND COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM Final Rejection Mitsubishi Electric Corporation
18538230 PREDICTIVE CONTROL OF ROBOTIC MANIPULATOR FOR A CATHETER Final Rejection Siemens Medical Solutions USA, Inc.
18629917 ENSURING THAT LANGUAGE MODELS FOLLOW INSTRUCTIONS INDICATED IN PROMPTS Non-Final OA Oracle International Corporation
18724926 METHODS AND SYSTEMS FOR PREDICTING PHENOTYPE Non-Final OA PIONEER HI-BRED INTERNATIONAL, INC.
18755797 COMPUTER-READABLE RECORDING MEDIUM STORING ACTIVE LEARNING PROGRAM, METHOD, AND APPARATUS Non-Final OA Fujitsu Limited
18590724 NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING MACHINE LEARNING PROGRAM, MACHINE LEARNING METHOD, AND MACHINE LEARNING APPARATUS Non-Final OA FUJITSU LIMITED
18733226 GENERATING SMALL LANGUAGE MODEL VIA TWO-PHASE TRAINING Non-Final OA Microsoft Technology Licensing, LLC
18538271 FINE-TUNING AN AI MODEL Final Rejection International Business Machines Corporation
18536390 CONTINUAL NEURAL NETWORK TRAINING IN AN EDGE COMPUTING ENVIRONMENT Final Rejection INTERNATIONAL BUSINESS MACHINES CORPORATION
18526120 REINFORCEMENT LEARNING BASED TRANSPILATION OF QUANTUM CIRCUITS Final Rejection International Business Machines Corporation
18509395 DATA AUGMENTATION USING DIFFERENT IN-DOMAIN DATA Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18681193 Method and Apparatus for Training a Model Non-Final OA Siemens Aktiengesellschaft
18142966 GENERATIVE MACHINE LEARNING FRAMEWORK Non-Final OA ServiceNow, Inc.
18589947 INFORMATION PROCESSING METHOD, INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING SYSTEM Non-Final OA Tokyo Electron Limited
18775085 Predicting Rates of Hypoglycemia by a Machine Learning System Non-Final OA Sanofi
18775116 Predicting Rates of Hypoglycemia by a Machine Learning System Non-Final OA Sanofi
18780911 REINFORCEMENT LEARNING METHOD APPLYING TODDLER-INSPIRED SEQUENTIAL REWARD TRANSITION, AND REINFORCEMENT LEARNING APPARATUS PERFORMING THE SAME Non-Final OA SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
18604891 Data Center Monitoring And Management Operation Including An Asset Utilization Forecast Operation Including a Feature Clustering Operation Non-Final OA Dell Products L.P.

Facing This Examiner?

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

Build Your Strategy

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