Prosecution Insights
Last updated: October 27, 2026

Lut Wong, USPTO Patent Examiner

Listed by the USPTO as WONG, LUT

Tech Center 2100 • Art Units: 2121 2127 2129

This examiner grants 77% of resolved cases

Analysis

Examiner Lut Wong, working in Art Unit 2121 within Tech Center 2100, has processed 612 resolved cases. The data shows an allowance rate of 77.3 percent, paired with a median time to allowance of 1253 days. Applicants can expect a moderate interview lift of 14.1 percent, which indicates that verbal communication with the examiner can be a productive strategy for advancing prosecution toward a grant. This lift suggests that interviews provide a measurable advantage in overcoming rejections.

The top companies appearing in this examiner's docket include Samsung Electronics Co., Ltd., NEC Corporation, and Fujitsu Limited. Frequent legal representation is provided by Artegis Law Group, LLP, BANNER & WITCOFF , LTD, and CALDWELL LLC. With a 77.3 percent allowance rate, the examiner provides a relatively consistent path to patent issuance, though the 1253-day median pendency suggests a longer prosecution cycle than some other units. Practitioners should plan for extended timelines while utilizing interviews to improve their success rate.

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

Performance Statistics

77.3%
Allow Rate
+22.3% vs TC avg
634
Total Applications
+14.1%
Interview Lift
1253
Avg Prosecution Days
Based on 612 resolved cases, 2023–2026

Rejection Statute Breakdown

17.6%
§101 Eligibility
25.0%
§102 Novelty
33.4%
§103 Obviousness
11.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18659888 METHOD AND DEVICE FOR IMPLEMENTING INFERENCE OF NEURAL NETWORK MODEL Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
17909478 INFORMATION PROCESSING DEVICE, CONTROL METHOD, AND STORAGE MEDIUM Final Rejection NEC Corporation
18102770 INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD Non-Final OA Fujitsu Limited
18679099 EQUIPMENT PROFILING AND AUTOMATIC SENSOR SIGNALING CHANNEL FAILOVER USING MACHINE LEARNING Non-Final OA Caterpillar Inc.
18744501 TRAINING SAMPLE ACQUIRING METHOD AND APPARATUS AS WELL AS LARGE MODEL OPTIMIZATION TRAINING METHOD AND APPARATUS Non-Final OA BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
18107275 AUTOMATICALLY DETERMINING RESOURCE SUPPORT PARAMETERS USING ARTIFICIAL INTELLIGENCE TECHNIQUES Non-Final OA Dell Products. L.P.
18308526 METHODS TO ESTIMATE EFFECTIVENESS OF A MEDICAL TREATMENT Non-Final OA Sanofi

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Who Appears Before This Examiner

Top companies before this examiner

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Frequently Asked Questions

What is examiner Lut Wong's allowance rate?

77.3% of resolved applications examined by Lut Wong were allowed (612 resolved cases), compared with 32.0% across Art Unit 2121 over the last five years.

Does an interview help with examiner Lut Wong?

This examiner's interview lift is +14.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Lut Wong take to allow a patent?

Applications allowed by Lut Wong took 1,253 days on average from filing to allowance.

Which art unit does examiner Lut Wong work in?

Lut Wong examines applications in Art Unit 2121 in Tech Center 2100 (Computing & Software).

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