Prosecution Insights
Last updated: October 02, 2026

Examiner: NGUYEN, ANH TUAN TUONG

Tech Center 3700 • Art Units: 3731 3779 3795

This examiner grants 4% of resolved cases

Analysis

Anh Tuan Tuong Nguyen is an examiner in Tech Center 3700 and Art Unit 3731. The data includes 72 resolved cases, which provides the basis for the following metrics. The allowance rate is 4.2 percent, representing the baseline probability of a grant for applications in this portfolio. This rate indicates a challenging prosecution environment for the 72 resolved cases.

The median days to allowance is 1585. This figure indicates the duration of the prosecution process for cases that reach an allowance. Practitioners should use the 1585-day timeline to set expectations for the time required to achieve a successful outcome. This duration is a key factor for applicants to consider when managing their intellectual property portfolios in Art Unit 3731.

The interview lift is 13.3 percent. This metric shows the increase in the allowance rate when an interview is conducted. Because the 13.3 percent lift is higher than the base allowance rate of 4.2 percent, the data suggests that interviews are a useful tool for practitioners. For the 72 resolved cases, engaging in an interview is associated with a higher likelihood of allowance compared to the baseline.

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

Performance Statistics

4.2%
Allow Rate
-65.8% vs TC avg
85
Total Applications
+13.3%
Interview Lift
1585
Avg Prosecution Days
Based on 72 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
27.6%
§102 Novelty
46.2%
§103 Obviousness
21.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18843839 ENDOSCOPE HOLDING DEVICE, ENDOSCOPIC SURGERY SYSTEM, AND CONTROL METHOD Non-Final OA SONY GROUP CORPORATION
18568862 MEDICAL OBSERVATION SYSTEM, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING METHOD Non-Final OA SONY GROUP CORPORATION

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