Prosecution Insights
Last updated: October 27, 2026

Pei Yong Weng, USPTO Patent Examiner

Listed by the USPTO as WENG, PEI YONG

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

This examiner grants 80% of resolved cases

Analysis

WENG, PEI YONG is a USPTO patent examiner in Tech Center 4100 and Art Unit 2124. The record covers 649 resolved cases and a 79.5% allowance rate. The median time to allowance is 1136 days. Interviews have a 22.7% lift, giving applicants a meaningful opportunity to improve an already favorable baseline. An interview may be most useful when the dispute turns on how a complex software or computing feature is mapped to the prior art.

The leading companies are International Business Machines Corporation, Fujitsu Limited, and Microsoft Technology Licensing, LLC. The leading firms are Harrity & Harrity, LLP, BIRCH STEWART KOLASCH & BIRCH, LLP, and Bridgeway IP Law Group, PLLC. The company mix reflects enterprise computing and software. Practitioners should coordinate technical explanations, claim amendments, and written support around the central inventive concept.

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

Performance Statistics

79.5%
Allow Rate
+19.5% vs TC avg
690
Total Applications
+22.7%
Interview Lift
1136
Avg Prosecution Days
Based on 649 resolved cases, 2023–2026

Rejection Statute Breakdown

13.3%
§101 Eligibility
20.9%
§102 Novelty
54.9%
§103 Obviousness
7.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18366273 MACHINE LEARNING BASED UPDATES OF DOMAIN SPECIFIC LANGUAGE PARAMETERS Final Rejection Capital One Services, LLC
18456777 DATA MODEL DEVELOPMENT STANDARDIZATION Non-Final OA Wells Fargo Bank, N.A.
18629917 ENSURING THAT LANGUAGE MODELS FOLLOW INSTRUCTIONS INDICATED IN PROMPTS Non-Final OA Oracle International Corporation
18724528 Method for Obfuscating Device Functionality Non-Final OA Google LLC
18832227 INFERENCE APPARATUS, INFERENCE METHOD, AND STORAGE MEDIUM Non-Final OA NEC Corporation
18724926 METHODS AND SYSTEMS FOR PREDICTING PHENOTYPE Non-Final OA PIONEER HI-BRED INTERNATIONAL, INC.
18597011 Federated Learning Method and Related Device Final Rejection Huawei Technologies Co., Ltd.
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
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.
18733226 GENERATING SMALL LANGUAGE MODEL VIA TWO-PHASE TRAINING Non-Final OA Microsoft Technology Licensing, LLC
18292368 IDENTIFIABLE GENERATIVE MODELS FOR MISSING NOT AT RANDOM DATA IMPUTATION Final Rejection Microsoft Technology Licensing, LLC
18589947 INFORMATION PROCESSING METHOD, INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING SYSTEM Non-Final OA Tokyo Electron Limited
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
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
18759938 SYSTEM AND METHOD FOR QUESTION-RESPONSE GENERATION USING GRAPH NEURAL NETWORKS CONSTRAINT UNDER BEAM SEARCH Non-Final OA Dell Products L.P.
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.
18732251 AUTOMATED SELF-SUPERVISED MACHINE LEARNING SERVICES THROUGH UNIFIED MACHINE LEARNING ENABLERS Non-Final OA STRIPE, INC.
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

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Frequently Asked Questions

What is examiner Pei Yong Weng's allowance rate?

79.5% of resolved applications examined by Pei Yong Weng were allowed (649 resolved cases), compared with 63.1% across Art Unit 2124 over the last five years.

Does an interview help with examiner Pei Yong Weng?

This examiner's interview lift is +22.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Pei Yong Weng take to allow a patent?

Applications allowed by Pei Yong Weng took 1,136 days on average from filing to allowance.

Which art unit does examiner Pei Yong Weng work in?

Pei Yong Weng examines applications in Art Unit 2124 in Tech Center 4100.

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