Prosecution Insights
Last updated: October 01, 2026

Examiner: GU, QINHUA

Tech Center 1600 • Art Units: 1633

This examiner grants 76% of resolved cases

Analysis

Qinhua Gu is an examiner in Tech Center 1600 and Art Unit 1633. Across 83 resolved cases, the data shows an allowance rate of 75.9 percent. This 75.9 percent figure provides a baseline for practitioners to understand the probability of a grant. The 83 resolved cases offer a look at the examiner's historical tendencies in this biotechnology and organic chemistry center.

The data reveals an interview lift of 27.8 percent. This 27.8 percent lift indicates that an interview is associated with a higher likelihood of allowance compared to the baseline of cases where no interview is conducted. Practitioners may use this metric to evaluate the impact of verbal advocacy. This comparison is a key element of the prosecution strategy for cases in Art Unit 1633.

The median days to allowance for Gu is 1398. This 1398-day period serves as a benchmark for the expected duration of successful prosecutions. The combination of the 75.9 percent allowance rate and the 27.8 percent interview lift, within the context of Tech Center 1600, helps in setting expectations for both timing and results.

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

Performance Statistics

75.9%
Allow Rate
+15.9% vs TC avg
126
Total Applications
+27.8%
Interview Lift
1398
Avg Prosecution Days
Based on 83 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
16.0%
§102 Novelty
47.3%
§103 Obviousness
25.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18285000 MODIFIED VIRUSES AND VIRAL PARTICLES, METHODS OF MAKING, AND USES THEREOF Final Rejection The Regents of the University of California
18921141 METHODS TO IMPROVE SITE-DIRECTED INTEGRATION FREQUENCY Non-Final OA Monsanto Technology LLC
17995263 HIGH-POTENTIAL PLURIPOTENT STEM CELLS Non-Final OA TOHOKU UNIVERSITY
18705720 CONTROLLING HOMEOSTATIC REGULATORY CIRCUITRY IN HYPOTHALAMUS Non-Final OA The Johns Hopkins University
18551562 RECOMBINANT VIRAL EXPRESSION VECTORS AND METHODS OF USE Non-Final OA North Carolina State University
17997264 Precision Dosing Regimen Non-Final OA CHILDREN'S HOSPITAL MEDICAL CENTER
18704122 CULTURE MEDIA AND CONDITIONS FOR IN VITRO EXPANSION AND/OR MATURATION OF HEPATOCYTES Non-Final OA Satellite Biosciences, Inc.
17778463 VACCINIA VIRUSES AND METHODS FOR USING VACCINIA VIRUSES Non-Final OA University of Pittsburgh - Of the Commonwealth System of Higher Education
18279336 STROMA-FREE NK CELL DIFFERENTIATION FROM HUMAN PLURIPOTENT STEM CELLS Non-Final OA The Children's Medical Center Corporation
17907571 MAINTAINING DNA FRAGMENTS IN EUKARYOTIC CELLS, APPROACHES AND USES Final Rejection Greffex, Inc.

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