Prosecution Insights
Last updated: October 02, 2026

Examiner: NGUYEN, TAI T

Tech Center 4100 • Art Units: 1779 2164 2612 2685 3648 3687 4100

This examiner grants 85% of resolved cases

Analysis

Tai T. Nguyen is an examiner in Tech Center 4100 and Art Unit 1779. His record includes 1114 resolved cases, providing a substantial dataset for analysis. The allowance rate for these cases is 84.7%. This 84.7% rate indicates the frequency with which applications reach a grant under his review. Practitioners can use this figure to assess the favorable prosecution environment when their cases are assigned to Art Unit 1779.

The median days to allowance is 731. This 731-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 731-day median is a key metric for applicants to consider when planning their patent strategy and budgeting for prosecution costs in Tech Center 4100.

The data also shows an interview lift of 17.2%. This 17.2% lift represents the increase in the allowance rate associated with conducting an examiner interview. Practitioners should evaluate this 17.2% lift as a potential strategy for advancing prosecution. While the base allowance rate is 84.7%, the 17.2% 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

84.7%
Allow Rate
+24.7% vs TC avg
1,126
Total Applications
+17.3%
Interview Lift
731
Avg Prosecution Days
Based on 1115 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
25.2%
§102 Novelty
29.3%
§103 Obviousness
28.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18955982 CONTROL DEVICE, DRIVER ASSIST METHOD, AND NONTRANSITORY COMPUTER STORAGE MEDIUM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19180694 EMULATED FACILITY SAFETY WITH CORRELATED SOUND FREQUENCY MODELING Non-Final OA Saudi Arabian Oil Company
19198011 SYSTEM AND METHOD FOR GENERATING DATA REGARDING A VEHICLE CRASH Non-Final OA State Farm Mutual Automobile Insurance Company
19077977 ALARM MANAGEMENT APPARATUS, ALARM MANAGEMENT METHOD, AND COMPUTER-READABLE RECORDING MEDIUM Non-Final OA Yokogawa Electric Corporation
19078818 MODULAR ASPIRATED SMOKE, GAS, OR AIR QUALITY MONITORING SYSTEMS AND DEVICES Non-Final OA Honeywell International Inc.
18436646 EAR-WEARABLE DEVICES FOR FALL PREVENTION USING VIBRATION SENSORY INPUT Non-Final OA Starkey Laboratories, Inc.

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