Examiner Zhou Qingzhang

3752-ZHOU-QINGZHANG

Employment Information

Art Unit:3752 — Fluid sprinkling, spraying, and diffusing
Group:3750 — Fluid Handling and Dispensing
Classes: 239 — Fluid sprinkling, spraying, and diffusing
169 — Fire extinguishers
222 — Dispensing
137 — Fluid handling
700 — Data processing: generic control systems or specific applications
210 — Liquid purification or separation
165 — Heat exchange
Phone:(571) 270-1163
Email:qingzhang.zhou@uspto.gov
Location:VA 22314
Title:Pat Examnr Mechl Engrg
Service:15 years
Grade:GS-14

Grant Rate and Difficulty Ranking

60
3-Year Grant rate: 71% over 372 cases
Difficulty: Medium
Difficulty Percentile: 60th

With Examiner Zhou, you have a 71% chance of getting an issued patent by 3 years after the first office action. Examiner Zhou is a medium examiner and in the 60th percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Zhou, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.

Comparison with Art Unit 3752

Examiner Zhou's grant rate is higher than that of Art Unit 3752 and lower than that of the USPTO.

Average Office Actions Per Grant
Examiner Zhou 2.2
Art Unit 3752 1.9

Interview Benefit

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Recent Dispositions

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Appeals Statistics

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Appeal History

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Disclaimer: We do not provide any guarantees as to the accuracy of the statistics presented above and under
no circumstances will we be liable for any outcome resulting from your reliance on the above statistics.

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