Prosecution Insights
Last updated: October 26, 2026

Sung S Ahn, USPTO Patent Examiner

Listed by the USPTO as AHN, SUNG S

Tech Center 2600 • Art Units: 2611 2631

This examiner grants 79% of resolved cases

Analysis

AHN, SUNG S works in Tech Center 2600 and Art Unit 2611. The examiner has 472 resolved cases, an allowance rate of 78.6%, and a median of 1019 days to allowance. Interviews are associated with an 11.9% lift in allowance outcomes, supporting their consideration when direct discussion may clarify claim scope or prior-art distinctions.

The listed companies are Ranictek Inc., Qualcomm Incorporated, and Nokia Corporation. The listed firms are Best & Flanagan LLP, Patterson + Sheridan, L.L.P., and Stevens Law Group. Counsel should plan for a median timeline beyond three years and use the substantial historical record to inform, but not replace, application-specific prosecution analysis.

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

Performance Statistics

78.6%
Allow Rate
+16.6% vs TC avg
482
Total Applications
+11.9%
Interview Lift
1019
Avg Prosecution Days
Based on 472 resolved cases, 2023–2026

Rejection Statute Breakdown

5.6%
§101 Eligibility
15.5%
§102 Novelty
55.7%
§103 Obviousness
17.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18892911 DYNAMIC ADAPTIVE BIASING FOR AMPLIFICATION CIRCUITRY Non-Final OA QUALCOMM Incorporated
18887628 TERMINAL DEVICE AND COMMUNICATION SYSTEM Non-Final OA Nokia Technologies Oy

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Frequently Asked Questions

What is examiner Sung S Ahn's allowance rate?

78.6% of resolved applications examined by Sung S Ahn were allowed (472 resolved cases), compared with 70.5% across Art Unit 2611 over the last five years.

Does an interview help with examiner Sung S Ahn?

This examiner's interview lift is +11.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sung S Ahn take to allow a patent?

Applications allowed by Sung S Ahn took 1,019 days on average from filing to allowance.

Which art unit does examiner Sung S Ahn work in?

Sung S Ahn examines applications in Art Unit 2611 in Tech Center 2600 (Communications).

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