Prosecution Insights
Last updated: October 26, 2026

Sangseok Park, USPTO Patent Examiner

Listed by the USPTO as PARK, SANGSEOK

Tech Center 2400 • Art Units: 2431 2494 2499

This examiner grants 84% of resolved cases

Performance Statistics

84.0%
Allow Rate
+26.0% vs TC avg
282
Total Applications
+14.9%
Interview Lift
841
Avg Prosecution Days
Based on 263 resolved cases, 2023–2026

Rejection Statute Breakdown

5.8%
§101 Eligibility
16.8%
§102 Novelty
63.3%
§103 Obviousness
7.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19121302 First Node, Second Node, Third Node, Fourth Node and Methods Performed Thereby for Handling Registration of the Second Node Non-Final OA Telefonaktiebolaget LM Ericsson (publ)
19294978 Cloud Computing Technology-Based Access Control Method and Apparatus Non-Final OA Huawei Cloud Computing Technologies Co., Ltd.
18645653 ENHANCED PROTECTION FOR WEB USERS VIA ADDITIONAL CROSS-ORIGIN RESOURCE SHARING VALIDATION Non-Final OA CISCO TECHNOLOGY, INC.
18820013 Isolation-Based Confidentiality Final Rejection Advanced Micro Devices, Inc.
19180639 SYSTEMS AND METHODS FOR PRIVACY CONTROLLED AND QUALITY CONTROLLED REQUESTS Non-Final OA BeeKeeperAI, Inc.

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Frequently Asked Questions

What is examiner Sangseok Park's allowance rate?

84.0% of resolved applications examined by Sangseok Park were allowed (263 resolved cases), compared with 76.5% across Art Unit 2431 over the last five years.

Does an interview help with examiner Sangseok Park?

This examiner's interview lift is +14.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sangseok Park take to allow a patent?

Applications allowed by Sangseok Park took 841 days on average from filing to allowance.

Which art unit does examiner Sangseok Park work in?

Sangseok Park examines applications in Art Unit 2431 in Tech Center 2400 (Networking & Security).

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