Prosecution Insights
Last updated: October 26, 2026

Grace Ching Hsu, USPTO Patent Examiner

Listed by the USPTO as HSU, GRACE CHING

Tech Center 1600 • Art Units: 1624 1627

This examiner grants 72% of resolved cases

Analysis

HSU, GRACE CHING is a USPTO patent examiner in tech center 1600 and art unit 1624. The profile contains 50 resolved cases, an allowance rate of 72.0%, and a median of 1233 days to allowance. The interview lift is 30.3%, making interview preparation a relevant part of prosecution planning despite the focused size of the record.

Suntory Holdings Limited is the only listed top company, and WHDA, LLP is the only listed top firm. Practitioners should treat this profile as a narrow data point and review the individual application history when using it to guide claim amendments, examiner communications, or timing expectations.

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

Performance Statistics

72.0%
Allow Rate
+12.0% vs TC avg
67
Total Applications
+30.3%
Interview Lift
1233
Avg Prosecution Days
Based on 50 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
24.1%
§102 Novelty
22.4%
§103 Obviousness
42.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18708426 COMPOSITION FOR INHIBITING HISTAMINE-N-METHYLTRANSFERASE Non-Final OA SUNTORY HOLDINGS LIMITED

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Frequently Asked Questions

What is examiner Grace Ching Hsu's allowance rate?

72.0% of resolved applications examined by Grace Ching Hsu were allowed (50 resolved cases), compared with 54.6% across Art Unit 1624 over the last five years.

Does an interview help with examiner Grace Ching Hsu?

This examiner's interview lift is +30.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Grace Ching Hsu take to allow a patent?

Applications allowed by Grace Ching Hsu took 1,233 days on average from filing to allowance.

Which art unit does examiner Grace Ching Hsu work in?

Grace Ching Hsu examines applications in Art Unit 1624 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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