Prosecution Insights
Last updated: October 26, 2026

Qinhua Gu, USPTO Patent Examiner

Listed by the USPTO as GU, QINHUA

Tech Center 1600 • Art Units: 1633

This examiner grants 76% of resolved cases

Analysis

Qinhua Gu is a USPTO patent examiner in tech center 1600 and art unit 1633. The profile reports 84 resolved cases, a 76.2% allowance rate, and a median of 1401 days to allowance. The interview lift is 27.1%, showing a measurable association between interviews and allowance outcomes. The 1401-day median indicates that applicants should incorporate extended prosecution timing into portfolio planning even with the recorded allowance rate.

The listed companies are Wisconsin Alumni Research Foundation, The Johns Hopkins University, and Monsanto Technology LLC. The leading firms are FOLEY & LARDNER LLP, Arnold & Porter Kaye Scholer LLP, and BakerHostetler. The organization mix reflects university, research, and agricultural biotechnology applicants.

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

Performance Statistics

76.2%
Allow Rate
+16.2% vs TC avg
135
Total Applications
+27.1%
Interview Lift
1401
Avg Prosecution Days
Based on 84 resolved cases, 2023–2026

Rejection Statute Breakdown

2.7%
§101 Eligibility
16.3%
§102 Novelty
45.9%
§103 Obviousness
27.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18705720 CONTROLLING HOMEOSTATIC REGULATORY CIRCUITRY IN HYPOTHALAMUS Non-Final OA The Johns Hopkins University

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Frequently Asked Questions

What is examiner Qinhua Gu's allowance rate?

76.2% of resolved applications examined by Qinhua Gu were allowed (84 resolved cases), compared with 34.8% across Art Unit 1633 over the last five years.

Does an interview help with examiner Qinhua Gu?

This examiner's interview lift is +27.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Qinhua Gu take to allow a patent?

Applications allowed by Qinhua Gu took 1,401 days on average from filing to allowance.

Which art unit does examiner Qinhua Gu work in?

Qinhua Gu examines applications in Art Unit 1633 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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