Prosecution Insights
Last updated: October 02, 2026

Examiner: ZHOU, QINGZHANG

Tech Center 3700 • Art Units: 3752

This examiner grants 67% of resolved cases

Analysis

Qingzhang Zhou operates within Tech Center 3700 and Art Unit 3752, where he has overseen 851 resolved cases. The allowance rate is 67.3 percent, and the median days to allowance is 1185. These figures indicate a moderate level of difficulty and a typical timeline for applications in this technical field, where 67.3 percent of cases result in a grant.

The interview lift of 24.5 percent is a significant factor for practitioners to consider. This 24.5 percent increase in allowance probability suggests that direct communication is highly effective for resolving prosecution hurdles with this examiner. With 851 resolved cases, the 67.3 percent allowance rate and 1185-day median provide a reliable statistical basis for developing a prosecution strategy. Practitioners should prioritize interviews to leverage the lift, which can be a decisive factor in overcoming rejections and navigating the path to allowance in Art Unit 3752.

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

Performance Statistics

67.3%
Allow Rate
-2.7% vs TC avg
886
Total Applications
+24.5%
Interview Lift
1185
Avg Prosecution Days
Based on 851 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
23.4%
§102 Novelty
50.2%
§103 Obviousness
22.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18600217 MACHINE BASED WEATHER MAPPING SYSTEM AND METHOD Final Rejection Oshkosh Corporation
18557479 DROPLET APPLICATOR AND METHOD FOR GENERATING MOLTEN METAL DROPLETS Final Rejection Robert Bosch GmbH
18741187 SHOWERHEAD Non-Final OA Kohler Co.
18604838 FUEL INJECTOR FOR GASEOUS FUEL AND VALVE ASSEMBLY FOR THE SAME Final Rejection Cummins Inc.
18808979 ENERGY STORAGE DEVICE WITH FIRE EXTINGUISHING FUNCTION Final Rejection Samsung SDI Co., Ltd.
18587987 GLUING NOZZLE AND GLUING DEVICE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18661014 CONTROLLED SYSTEM AND METHODS FOR STORAGE FIRE PROTECTION Non-Final OA Tyco Fire Products LP
18391072 SPRAYGUN WITH BUILT-IN QUICK-FIT CONNECTOR Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18024125 Microfluidic Oscillator Non-Final OA AS America, Inc.
18215627 SYSTEM AND METHOD FOR CONTROLLING THE OPERATION OF AN AGRICULTURAL SPRAYER Non-Final OA CNH Industrial Canada, Ltd.
17878629 VOLATILE MATERIAL DISPENSER Non-Final OA S. C. Johnson & Son, Inc.

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