Prosecution Insights
Last updated: October 01, 2026

Examiner: LUU, THANH X

Tech Center 4100 • Art Units: 2878 2899 3725 4100

This examiner grants 78% of resolved cases

Analysis

Thanh X. Luu handles cases in Art Unit 2878 within Tech Center 4100. With 1380 resolved cases, the examiner has an allowance rate of 78.2 percent. This high rate suggests a strong likelihood of success for applicants in this unit. Practitioners can use the 78.2 percent figure to communicate a positive outlook to clients regarding the probability of securing a patent grant.

The interview lift is 10.2 percent. This indicates that interviews are a helpful tool for moving cases toward an allowance, providing a double-digit increase in the chances of success. Practitioners should consider the 10.2 percent lift as a reason to engage the examiner when rejections are encountered, as verbal discussion can effectively supplement written arguments.

The median days to allowance is 909. This timeline represents the typical duration for successful applications, lasting about two and a half years. The efficiency of this unit is reflected in both the 78.2 percent allowance rate and the 909-day median pendency. These metrics provide a reliable basis for setting expectations about the speed and success of the prosecution process.

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

Performance Statistics

78.2%
Allow Rate
+18.2% vs TC avg
1,399
Total Applications
+10.2%
Interview Lift
909
Avg Prosecution Days
Based on 1380 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
26.8%
§102 Novelty
42.5%
§103 Obviousness
19.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18421468 IMAGE SENSOR AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18727712 ENCODER, MOTOR, AND METHOD FOR MANUFACTURING ENCODER Final Rejection Panasonic Intellectual Property Management Co., Ltd.
18951132 SOLID-STATE IMAGING APPARATUS AND METHOD OF DRIVING THE SAME Non-Final OA PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
18650988 IMAGING ELEMENT AND RANGING DEVICE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18547451 CONTACT CLEANING APPARATUS Non-Final OA Illinois Tool Works Inc.
19068166 SYSTEMS AND METHODS FOR DETERMINING BORE CHARACTERISTICS OF A HOLE Non-Final OA The Boeing Company
19005510 PHOTOELECTRIC CONVERSION ELEMENT, PHOTODETECTOR, PHOTODETECTION SYSTEM, ELECTRONIC APPARATUS, AND MOBILE BODY Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18867964 RANGING DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
19236021 AUTO-EXPOSURE OCCLUSION CAMERA Final Rejection Waymo LLC
19060006 INSPECTION APPARATUS Non-Final OA HANWHA SOLUTIONS CORPORATION
18873731 DATA PROCESSING ALGORITHM EVALUATION DEVICE Non-Final OA The University of Tokyo
18970542 REDUCED FLUCTUATIONS AND INCREASED BRIGHTNESS UNIFORMITY OF LASER SUSTAINED PLASMA SOURCES Non-Final OA KLA Corporation

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