Prosecution Insights
Last updated: October 01, 2026

Examiner: VU, NGOC K

Tech Center 2600 • Art Units: 2421 2623

This examiner grants 72% of resolved cases

Analysis

Ngoc K Vu is an examiner in Art Unit 2421 within Tech Center 2600. The examiner has 263 resolved cases and maintains an allowance rate of 71.9 percent. This rate indicates a generally positive outlook for applicants, with a majority of resolved cases ending in a grant. The 263 resolved cases offer a significant sample size for understanding the examiner's typical tendencies.

Successful applications reach grant in a median of 1326 days. This timeline reflects the typical duration of prosecution in Art Unit 2421. The data also shows an interview lift of 12.7 percent. This 12.7 percent lift suggests that interviews are an effective strategy for increasing the probability of allowance beyond the 71.9 percent baseline. Practitioners should consider the 1326 day median when planning their prosecution timelines in Tech Center 2600. The examiner's metrics suggest that a combination of persistence and direct communication is beneficial.

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

Performance Statistics

71.9%
Allow Rate
+9.9% vs TC avg
276
Total Applications
+12.7%
Interview Lift
1326
Avg Prosecution Days
Based on 263 resolved cases, 2023–2026

Rejection Statute Breakdown

5.4%
§101 Eligibility
15.6%
§102 Novelty
48.7%
§103 Obviousness
17.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19037933 RECOMMENDATION SYSTEM COMPRISING ELECTRONIC DEVICE AND SERVER, AND METHOD FOR OPERATING RECOMMENDATION SYSTEM Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18487675 METHOD AND APPARATUS FOR DELIVERING VIDEO AND VIDEO-RELATED CONTENT AT SUB-ASSET LEVEL Non-Final OA Comcast Cable Communications, LLC
18907650 NON-TELEVISION EXPERIENCE TRIGGERS Final Rejection Roku, Inc.

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