Prosecution Insights
Last updated: October 02, 2026

Examiner: NGUYEN, SEAN H

Tech Center 2600 • Art Units: 2651 2691

This examiner grants 86% of resolved cases

Analysis

Sean H. Nguyen serves as an examiner in Tech Center 2600 and Art Unit 2651. He has managed 616 resolved cases, establishing a clear record of outcomes for practitioners to analyze. The allowance rate for these cases is 86.4%, which reflects the proportion of applications that successfully result in a patent grant. This 86.4% rate suggests a favorable environment for applicants seeking protection in Art Unit 2651.

The median days to allowance is 748. This 748-day figure provides a timeline for the duration of the examination process for successful applications. A median of 748 days indicates the expected path to a grant in Tech Center 2600. Applicants can use this 748-day metric to plan their intellectual property strategy and manage expectations regarding the speed of resolution.

The data highlights an interview lift of 4.9%. This 4.9% lift represents the increase in the allowance rate when an interview is conducted. While the base allowance rate of 86.4% is already high, the 4.9% lift shows that direct communication remains a useful tactic for resolving any remaining issues. Practitioners should consider the 4.9% lift as a supplemental strategy to ensure a successful outcome within the 748-day median timeframe.

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

Performance Statistics

86.4%
Allow Rate
+24.4% vs TC avg
623
Total Applications
+4.9%
Interview Lift
748
Avg Prosecution Days
Based on 617 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
27.2%
§102 Novelty
52.9%
§103 Obviousness
11.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18967164 ELECTROACOUSTIC TRANSDUCER Non-Final OA FUJIFILM Corporation
18794812 PASSIVE THERMAL-CONTROL STRUCTURE FOR SPEAKERS AND ASSOCIATED APPARATUSES AND METHODS Non-Final OA Google LLC
18957861 CLOSED SOUND RECEIVER WITH SOUND-PERMEABLE BOUNDARY SURFACE Non-Final OA Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
19027476 INFORMATION PROCESSING APPARATUS AND CONTROL METHOD Non-Final OA Lenovo (Singapore) Pte. Ltd.
18999469 State Determination Method, Electronic Device, and Readable Storage Medium Non-Final OA VIVO MOBILE COMMUNICATION CO.,LTD.
19014177 EARPHONES Non-Final OA SHENZHEN SHOKZ CO., LTD.
19015684 Diaphragm for Speaker and Speaker Using Same Non-Final OA AAC Microtech (Changzhou) Co., Ltd.
18984858 Speaker Non-Final OA AAC Microtech (Changzhou) Co., Ltd.
18387424 FOCUSING METHODS FOR A PROSTHESIS Final Rejection Cochlear Limited
19041842 CONSTRUCTION TECHNIQUES FOR HEARING INSTRUMENTS Non-Final OA Starkey Laboratories, Inc.
19069293 HEARING AID Non-Final OA Oticon A/S

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