Prosecution Insights
Last updated: October 02, 2026

Examiner: NGUYEN, QUANG X.L.

Tech Center 2800 • Art Units: 1774 2853 2854

This examiner grants 49% of resolved cases

Analysis

Quang X.L. Nguyen is an examiner in Tech Center 2800 and Art Unit 1774. His record includes 490 resolved cases, providing a basis for understanding his prosecution patterns. The allowance rate for these cases is 48.6%. This 48.6% rate indicates the frequency with which applications reach a grant under his review. Practitioners can use this figure to assess the prosecution environment when their cases are assigned to Art Unit 1774.

The median days to allowance is 1201. This 1201-day figure represents the middle point of the timeline for applications that result in a patent grant. It serves as a practical benchmark for managing expectations regarding the duration of the examination process. The 1201-day median is a key metric for applicants to consider when planning their patent strategy and budgeting for prosecution costs in Tech Center 2800.

The data also shows an interview lift of 12.4%. This 12.4% lift represents the increase in the allowance rate associated with conducting an examiner interview. Practitioners should evaluate this 12.4% lift as a potential strategy for advancing prosecution. While the base allowance rate is 48.6%, the 12.4% lift suggests that direct communication can be a productive tool for resolving outstanding issues and securing a grant. This lift provides a measurable basis for deciding whether to engage in an interview.

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

Performance Statistics

48.6%
Allow Rate
-19.4% vs TC avg
508
Total Applications
+12.4%
Interview Lift
1201
Avg Prosecution Days
Based on 490 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
21.2%
§102 Novelty
56.4%
§103 Obviousness
15.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18769660 Feed Tray and Image Recording Apparatus Non-Final OA Brother Kogyo Kabushiki Kaisha
18887837 SEMICONDUCTOR DEFECT INSPECTION METHOD AND APPARATUS Non-Final OA Kia Corporation
18718214 ALARM Final Rejection Mitsubishi Electric Corporation
18012725 Method for Monitoring at Least One Working Machine Driven by a Rotating Machine Non-Final OA KSB SE & Co. KGaA
18935499 INTERACTIVE SOLUTIONS FOR CABLE MAPPING OVER DEPLOYED OPTICAL FIBER NETWORKS Non-Final OA NEC Laboratories America, Inc.
18827065 PRINTING MACHINE AND FIXED PATTERNED PLATE Non-Final OA VIAVI SOLUTIONS INC.
18135934 SHAPE CHECKING DEVICE FOR BENDING MATERIAL AND CONTINUOUS FORMING MACHINE Non-Final OA POSCO Co., Ltd.
18838741 COMPUTER-IMPLEMENTED METHOD FOR DETERMINING DEPTH AND LOCATION OF LOCALISED THINNING IN PLATE STRUCTURE Non-Final OA AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
18011214 A LIGHT-ACOUSTIC SYSTEM AND A METHOD FOR DETECTING AN ANOMALY IN A STRUCTURE Final Rejection AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
18718566 A CHAIN LOAD MONITORING UNIT, AND AN INSTALLATION TOOL AND A METHOD FOR INSTALLING A CHAIN LOAD MONITORING UNIT Non-Final OA KONGSBERG MARITIME AS
18505938 VAPOR PRESSURE DEFICIT SENSOR Final Rejection HGCI, Inc.

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