Prosecution Insights
Last updated: October 27, 2026

Hosuk Song, USPTO Patent Examiner

Listed by the USPTO as SONG, HOSUK

Tech Center 3600 • Art Units: 2129 2135 2137 2431 2435 2496 3691

This examiner grants 95% of resolved cases

Analysis

SONG, HOSUK is assigned to tech center 3600 and art unit 2129. The profile records 1550 resolved cases, with an allowance rate of 94.6% and a median of 804 days to allowance. The combination of a high allowance rate and substantial resolved-case volume gives practitioners a broad historical basis for evaluating prosecution outcomes.

Interviews are associated with a 3.0% lift in allowance rate. The principal companies represented are The Toronto-dominion Bank, Qualcomm Incorporated, and Beijing Xiaomi Mobile Software Co., Ltd. The most frequently appearing firms are Acuity Law Group, P.C., Blueshift IP LLC, and FENWICK & WEST LLP. These entities provide useful reference points when assessing examiner-specific prosecution experience.

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

Performance Statistics

94.6%
Allow Rate
+42.6% vs TC avg
1,575
Total Applications
+3.0%
Interview Lift
804
Avg Prosecution Days
Based on 1550 resolved cases, 2023–2026

Rejection Statute Breakdown

16.5%
§101 Eligibility
39.1%
§102 Novelty
7.3%
§103 Obviousness
11.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18464696 SYSTEM AND METHODS FOR PROCESSING USER INTERACTIONS WITH WEB DOCUMENTS Non-Final OA The Toronto-Dominion Bank
19145168 HARDWARE-BASED DATA PROTECTION FOR REPLAY PROTECTED DATA Non-Final OA QUALCOMM Incorporated
18833752 UE DISCOVERY MESSAGE PROTECTION METHOD AND APPARATUS, COMMUNICATION DEVICE, AND STORAGE MEDIUM Non-Final OA Beijing Xiaomi Mobile Software Co., Ltd.
19135115 MODULATION-ENHANCED AUTHENTICATION Non-Final OA Nokia Technologies Oy

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Frequently Asked Questions

What is examiner Hosuk Song's allowance rate?

94.6% of resolved applications examined by Hosuk Song were allowed (1,550 resolved cases), compared with 45.4% across Art Unit 2129 over the last five years.

Does an interview help with examiner Hosuk Song?

This examiner's interview lift is +3.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hosuk Song take to allow a patent?

Applications allowed by Hosuk Song took 804 days on average from filing to allowance.

Which art unit does examiner Hosuk Song work in?

Hosuk Song examines applications in Art Unit 2129 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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