Prosecution Insights
Last updated: October 26, 2026

Chan S Park, USPTO Patent Examiner

Listed by the USPTO as PARK, CHAN S

Tech Center 2600 • Art Units: 2624 2625 2664 2669

This examiner grants 70% of resolved cases

Analysis

Examiner Chan S. Park is assigned to Tech Center 2600 and Art Unit 2624. The data shows 159 resolved cases with an allowance rate of 70.4 percent. This allowance rate is higher than the interview lift of 42.4 percent. The median days to allowance for these cases is 1434.

The 70.4 percent allowance rate provides a baseline for applicants in this art unit. An interview lift of 42.4 percent indicates the change in grant probability when practitioners engage in direct dialogue. Applicants should consider the 1434 median days to allowance when managing their prosecution timelines. The 159 resolved cases represent the total volume of outcomes analyzed for this profile.

Top companies include Sony Group Corporation, Toyota Motor Corporation, and Siemens Healthineers AG. Firms such as HARNESS, DICKEY & PIERCE, P.L.C., McDermott Will & Schulte LLP, and NORTH AMERICA INTELLECTUAL PROPERTY CORPORATION represent these entities. These firms navigate the prosecution environment and the specific metrics associated with this examiner's record.

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

Performance Statistics

70.4%
Allow Rate
+8.4% vs TC avg
172
Total Applications
+42.4%
Interview Lift
1434
Avg Prosecution Days
Based on 159 resolved cases, 2023–2026

Rejection Statute Breakdown

11.1%
§101 Eligibility
19.3%
§102 Novelty
39.6%
§103 Obviousness
26.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18998530 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING SYSTEM Non-Final OA Sony Semiconductor Solutions Corporation
18980364 TARGET RECOGNITION SYSTEM, TARGET RECOGNITION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19008731 METHOD FOR DETERMINING ITEMS OF OBJECT INFORMATION IN A MEDICAL EXAMINATION AND/OR TREATMENT ARRANGEMENT, MEDICAL EXAMINATION AND/OR TREATMENT ARRANGEMENT, COMPUTER PROGRAM AND ELECTRONICALLY READABLE DATA MEDIUM Non-Final OA Siemens Healthineers AG
19008610 AUTOMATED IMAGE QUALITY ASSESSMENT Non-Final OA MEDIATEK INC.

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Frequently Asked Questions

What is examiner Chan S Park's allowance rate?

70.4% of resolved applications examined by Chan S Park were allowed (159 resolved cases), compared with 74.2% across Art Unit 2624 over the last five years.

Does an interview help with examiner Chan S Park?

This examiner's interview lift is +42.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Chan S Park take to allow a patent?

Applications allowed by Chan S Park took 1,434 days on average from filing to allowance.

Which art unit does examiner Chan S Park work in?

Chan S Park examines applications in Art Unit 2624 in Tech Center 2600 (Communications).

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