Prosecution Insights
Last updated: October 27, 2026

Hannah J Pak, USPTO Patent Examiner

Listed by the USPTO as PAK, HANNAH J

Tech Center 1700 • Art Units: 1712 1732 1742 1743 1764 1787 1796

This examiner grants 78% of resolved cases

Analysis

Hannah J. Pak works in Tech Center 1700 and art unit 1712. Her record includes 1224 resolved cases, with a 78.2% allowance rate and a median of 979 days to allowance. The substantial case volume gives practitioners a broad record for assessing allowance outcomes and the expected pace of prosecution.

The interview lift is 21.3%, indicating a meaningful association between interviews and allowance outcomes. The leading companies are Henkel AG & Co. KGaA, Mitsubishi Chemical Corporation, and PPG Industries Inc. The leading firms are FOLEY & LARDNER LLP, Buchanan Ingersoll & Rooney PC, and CANTOR COLBURN LLP. Counsel may combine disciplined written responses with interviews where direct discussion can address unresolved issues.

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

Performance Statistics

78.2%
Allow Rate
+13.2% vs TC avg
1,251
Total Applications
+21.3%
Interview Lift
979
Avg Prosecution Days
Based on 1224 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
7.8%
§102 Novelty
45.2%
§103 Obviousness
24.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18505184 Thermally Conductive Silicone Composition Non-Final OA Henkel AG & Co. KGaA
18578221 FILLED POLYOLEFIN COMPOSITION Non-Final OA Basell Poliolefine Italia S.r.l.
18411396 LOW-DIELECTRIC RESIN COMPOSITION Final Rejection NAN YA PLASTICS CORPORATION
18279812 POWDER, FILLER, COMPOSITION, AND METHOD FOR PRODUCING FILLER Final Rejection FUJIMI INCORPORATED
18564567 PHOSPHITE COMPOSITION Non-Final OA SUMITOMO CHEMICAL COMPANY, LIMITED
18522016 FAST FABRICATION OF FIBER REINFORCED POLYMERS USING SOLID EPOXY POWDER CONTAINING AN INITIATOR Final Rejection XEROX CORPORATION
18294449 IMPROVED RESIN SYSTEM FOR FOAMING FIRE-RESISTANT COATINGS Non-Final OA Röhm GmbH

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Frequently Asked Questions

What is examiner Hannah J Pak's allowance rate?

78.2% of resolved applications examined by Hannah J Pak were allowed (1,224 resolved cases), compared with 43.3% across Art Unit 1712 over the last five years.

Does an interview help with examiner Hannah J Pak?

This examiner's interview lift is +21.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hannah J Pak take to allow a patent?

Applications allowed by Hannah J Pak took 979 days on average from filing to allowance.

Which art unit does examiner Hannah J Pak work in?

Hannah J Pak examines applications in Art Unit 1712 in Tech Center 1700 (Chemistry & Materials).

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