Examiner Chang Kai J

2468-CHANG-KAI-J

Employment Information

Art Unit:2468 — Multiplex communications
Group:2410-2460-2470 — Multiplex and VoIP
Classes: 370 — Multiplex communications
709 — Electrical computers and digital processing systems: multicomputer data transferring
Phone:(571) 270-5448
Email:kai.chang@uspto.gov
Location:VA 22314
Title:Pat Examnr Compr Engrg
Service:18 years
Grade:GS-11

Grant Rate and Difficulty Ranking

46
3-Year Grant rate: 79% over 183 cases
Difficulty: Medium
Difficulty Percentile: 46th

With Examiner Chang, you have a 79% chance of getting an issued patent by 3 years after the first office action. Examiner Chang is a medium examiner and in the 46th percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Chang, 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 2468

Examiner Chang's grant rate is lower than that of Art Unit 2468 and higher than that of the USPTO.

Average Office Actions Per Grant
Examiner Chang 1.9
Art Unit 2468 1.7

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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