Prosecution Insights
Last updated: October 02, 2026

Examiner: PARK, SANGSEOK

Tech Center 4100 • Art Units: 2431 2494 2499 4100

This examiner grants 84% of resolved cases

Analysis

Examiner PARK, SANGSEOK is assigned to Art Unit 2431 within Tech Center 4100. The data shows that the examiner has 257 resolved cases, with an allowance rate of 84.4 percent. This 84.4 percent allowance rate serves as a baseline for applicants during the examination process. The 257 resolved cases provide a record of the examiner's work in Art Unit 2431. These figures establish the prosecution environment for this unit.

The median days to allowance for successful applications is 844. An interview lift of 15.6 percent is recorded, which indicates the change in the probability of allowance following an interview. Practitioners can use this 15.6 percent lift to evaluate the impact of communication. The 844 median days to allowance helps in planning the prosecution timeline. The metrics are derived from the examiner's professional history in Tech Center 4100.

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

Performance Statistics

83.8%
Allow Rate
+23.8% vs TC avg
272
Total Applications
+15.3%
Interview Lift
843
Avg Prosecution Days
Based on 259 resolved cases, 2023–2026

Rejection Statute Breakdown

5.6%
§101 Eligibility
16.2%
§102 Novelty
64.4%
§103 Obviousness
7.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19203057 Enforcement of Immutable System Properties Non-Final OA Apple Inc.
18613610 MULTIMODAL LARGE LANGUAGE MODEL (LLM)-BASED THREAT MODELING Non-Final OA American Express Travel Related Services Company, Inc.
19185372 IMAGE PROCESSING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
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)
19198646 DATA STORAGE DEVICE AND OPERATING METHOD THEREOF Non-Final OA SK hynix Inc.
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.
19003853 SYSTEM AND METHOD FOR GENERATING A PARTITIONED VIEW OF A SECURITY GRAPH IN A CLOUD COMPUTING ENVIRONMENT Final Rejection Wiz, Inc.
19180639 SYSTEMS AND METHODS FOR PRIVACY CONTROLLED AND QUALITY CONTROLLED REQUESTS Non-Final OA BeeKeeperAI, Inc.

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