Examiner Liu Guozhen

1686-LIU-GUOZHEN

Employment Information

Art Unit:1686 — Data processing: measuring, calibrating, or testing
Group:1680 — Nucleic acid assay, Combinatorial and Computational Chemistry, Combination Biology and Computer Science
Classes: 702 — Data processing: measuring, calibrating, or testing
703 — Data processing: structural design, modeling, simulation, and emulation
706 — Data processing: artificial intelligence
435 — Chemistry: molecular biology and microbiology
424 — Drug, bio-affecting and body treating compositions
Phone:(571) 272-0224
Email:guozhen.liu@uspto.gov
Location:VA 22314
Title:Pat Examnr Gen Chem
Service:5 years
Grade:GS-11

Grant Rate and Difficulty Ranking

83
3-Year Grant rate: 46% over 70 cases
Difficulty: Very Hard
Difficulty Percentile: 83rd

With Examiner Liu, you have a 46% chance of getting an issued patent by 3 years after the first office action. Examiner Liu is a very hard examiner and in the 83rd percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Liu, 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 1686

Examiner Liu's grant rate is lower than that of Art Unit 1686 and lower than that of the USPTO.

Average Office Actions Per Grant
Examiner Liu 2.6
Art Unit 1686 2.5

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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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