Examiner Sheng Chao

3797-SHENG-CHAO

Employment Information

Art Unit:3797 — Surgery
Group:3790 — Medical Instruments, Diagnostic Equipment, and Treatment Devices
Classes: 600 — Surgery
601 — Surgery: kinesitherapy
606 — Surgery
604 — Surgery
348 — Television
345 — Computer graphics processing and selective visual display systems
623 — Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
250 — Radiant energy
706 — Data processing: artificial intelligence
700 — Data processing: generic control systems or specific applications
Phone:(571) 272-8059
Email:chao.sheng@uspto.gov
Location:VA 22314
Title:Pat Examnr Biomedical Engrg
Service:8 years
Grade:GS-14

Grant Rate and Difficulty Ranking

88
3-Year Grant rate: 36% over 170 cases
Difficulty: Very Hard
Difficulty Percentile: 88th

With Examiner Sheng, you have a 36% chance of getting an issued patent by 3 years after the first office action. Examiner Sheng is a very hard examiner and in the 88th percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Sheng, 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 3797

Examiner Sheng's grant rate is lower than that of Art Unit 3797 and lower than that of the USPTO.

Average Office Actions Per Grant
Examiner Sheng 1.9
Art Unit 3797 2.0

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
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