Prosecution Insights
Last updated: October 26, 2026

Sun U Kim, USPTO Patent Examiner

Listed by the USPTO as KIM, SUN U

Tech Center 3700 • Art Units: 1772 1777 1797 3771 3783 3791

This examiner grants 78% of resolved cases

Analysis

KIM, SUN U is assigned to tech center 3700 and art unit 1772. The record includes 987 resolved cases and an allowance rate of 78.2%. The median time to allowance is 1023 days. Interviews are associated with an 11.6% lift.

The named companies are DEKA Products Limited Partnership, Vantive Health GmbH, and Water Harvesting Inc. The leading firms are CANTOR COLBURN LLP, Knobbe, Martens, Olson & Bear, LLP, and CR MILES, P.C. The volume of resolved cases gives practitioners a useful record for reviewing prosecution outcomes. The timing and interview measures can support decisions about response calendars and whether examiner contact should accompany written prosecution work.

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

Performance Statistics

78.2%
Allow Rate
+8.2% vs TC avg
1,031
Total Applications
+11.6%
Interview Lift
1023
Avg Prosecution Days
Based on 987 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
24.0%
§102 Novelty
44.9%
§103 Obviousness
19.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18506749 FILTRATION MEMBRANE AND METHOD FOR OIL AND WATER SEPARATION Non-Final OA KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
18509312 MICROPOROUS GRAPHENE OXIDE SHEET, DISPERSION, AND MEMBRANE INCLUDING THE SAME Non-Final OA KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18852842 PACKAGE IN WHICH AQUEOUS ASCORBIC ACID SOLUTION IS CONTAINED Non-Final OA SUNTORY HOLDINGS LIMITED

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Frequently Asked Questions

What is examiner Sun U Kim's allowance rate?

78.2% of resolved applications examined by Sun U Kim were allowed (987 resolved cases), compared with 59.5% across Art Unit 1772 over the last five years.

Does an interview help with examiner Sun U Kim?

This examiner's interview lift is +11.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sun U Kim take to allow a patent?

Applications allowed by Sun U Kim took 1,023 days on average from filing to allowance.

Which art unit does examiner Sun U Kim work in?

Sun U Kim examines applications in Art Unit 1772 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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