Prosecution Insights
Last updated: October 26, 2026

Jong Suk Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, JONG SUK

Tech Center 3600 • Art Units: 2875 2885 3635 3641

This examiner grants 21% of resolved cases

Analysis

Examiner Lee, Jong Suk works in Tech Center 3600 and Art Unit 2875, with 131 resolved cases. The allowance rate is 20.6 percent, which is quite low and indicates a very challenging prosecution path. The interview lift is 25.7 percent, suggesting that interviews are an effective tool for securing an allowance. The median days to allowance is 979 days, reflecting a standard prosecution timeline.

Companies like Hamm AG, Seiko Epson Corporation, and NEC Corporation are among the top entities in this examiner's docket. Firms such as RANKIN, HILL & CLARK LLP, Dority & Manning, P.A. and Seiko Epson, and IPUSA, P.L.L.C must account for the 979 days to allowance in their planning. The 131 resolved cases provide a data set that highlights the difficulty of obtaining a grant.

The 20.6 percent allowance rate suggests that applicants should be prepared for a rigorous examination. However, the 25.7 percent interview lift is a significant metric, indicating that verbal communication can meaningfully improve the outcome of a case. In Art Unit 2875, the 979 days to allowance further emphasizes the need for efficient communication to move cases toward a resolution.

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

Performance Statistics

20.6%
Allow Rate
-31.4% vs TC avg
145
Total Applications
+25.7%
Interview Lift
979
Avg Prosecution Days
Based on 131 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
26.7%
§102 Novelty
55.3%
§103 Obviousness
14.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18605316 WAVELENGTH CONVERSION DEVICE, METHOD OF MANUFACTURING WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR Final Rejection SEIKO EPSON CORPORATION
18719909 MULTIFUNCTIONAL POLE Final Rejection NEC Corporation
18673767 SLIPFORM PAVER Final Rejection Wirtgen GmbH

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Frequently Asked Questions

What is examiner Jong Suk Lee's allowance rate?

20.6% of resolved applications examined by Jong Suk Lee were allowed (131 resolved cases), compared with 65.6% across Art Unit 2875 over the last five years.

Does an interview help with examiner Jong Suk Lee?

This examiner's interview lift is +25.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jong Suk Lee take to allow a patent?

Applications allowed by Jong Suk Lee took 979 days on average from filing to allowance.

Which art unit does examiner Jong Suk Lee work in?

Jong Suk Lee examines applications in Art Unit 2875 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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