Prosecution Insights
Last updated: October 02, 2026

Examiner: NGUYEN, THANH H

Tech Center 1700 • Art Units: 1791 1792

This examiner grants 18% of resolved cases

Analysis

Thanh H. Nguyen serves as an examiner in Tech Center 1700 and Art Unit 1791. He has managed 333 resolved cases, establishing a clear record of outcomes for practitioners to analyze. The allowance rate for these cases is 18.6%, which reflects the proportion of applications that successfully result in a patent grant. This 18.6% rate suggests a highly challenging environment for applicants seeking protection in Art Unit 1791.

The median days to allowance is 1245. This 1245-day figure provides a timeline for the duration of the examination process for successful applications. A median of 1245 days indicates the expected path to a grant in Tech Center 1700. Applicants can use this 1245-day metric to plan their intellectual property strategy and manage expectations regarding the speed of resolution.

The data highlights an interview lift of 34.9%. This 34.9% lift represents the increase in the allowance rate when an interview is conducted. Given the base allowance rate of 18.6%, the 34.9% lift shows that direct communication is a highly effective tactic for resolving issues. Practitioners should consider the 34.9% lift as a primary strategy to improve the probability of a successful outcome within the 1245-day median timeframe.

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

Performance Statistics

18.5%
Allow Rate
-46.5% vs TC avg
364
Total Applications
+34.3%
Interview Lift
1248
Avg Prosecution Days
Based on 335 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
10.2%
§102 Novelty
54.2%
§103 Obviousness
30.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17440409 COMPOSITION COMPRISING TRANSFRUCTOSYLATED STEVIOL GLYCOSIDE Non-Final OA CJ CHEILJEDANG CORPORATION
18262634 AERATED FREEZE-DRIED BABY-SNACK Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
16593753 CONTAINER WITH HINGED COMPARTMENT Final Rejection TARGET BRANDS, INC.
17922766 NUTRITIONAL SUPPLEMENTS COMPRISING DIETARY METAL COMPLEXES IN A MATRIX OF CELLULOSIC MATERIALS Final Rejection North Carolina State University
17916934 TEA-FRAGRANCE-IMPARTING LIQUID COMPOSITION HAVING GREEN LAVER SCENT Final Rejection SUNTORY HOLDINGS LIMITED
18204803 METHODS AND APPARATUS FOR SANITARY AND CONVENIENT FEEDING Non-Final OA Papeltec Overseas, Inc.
18860928 METHOD FOR IMPARTING ANIMAL-FAT-LIKE FLAVOR IN PROCESSED FOOD PRODUCT Non-Final OA FUJI OIL HOLDINGS INC.
17802534 OILY FOOD MATERIAL FOR COMBINATION USE, AND METHOD FOR PRODUCING SAME Non-Final OA FUJI OIL HOLDINGS INC.

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