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by KellDann
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Examiner David Yi

Potentially inactive Last observed office action: October 2025 (6 months ago).

Examiner David Yi appears to be about average relative to their peer examiners. Their lifetime grant ratio is 70.2%, they average 2.10 office actions per granted patent, and their rejection profile is dominated by ยง103.

Difficulty vs AU Very Hard
Difficulty vs Group Very Easy
Difficulty vs TC Very Easy
Difficulty vs USPTO About Average
Average OA / Grant 2.10
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Examiner Details

Observed Examiner Years
18 years (2008-2025)
Tech Center
2400 - Computer Networks, Multiplex, Cable and Cryptography/Security
Group
2440 - Computer Networks

Metrics

Applications Evaluated
225
Granted Applications
158
Non-Granted Applications
67
Avg OA / Grant
2.10
Last OA Observed
October 2025 (6 months ago)
Art Units Seen
2126 , 2132 , 2441 , 2449
Work Groups Seen
2440 - Computer Networks

Context Comparison

Scope Examiners Lifetime Grant Ratio Avg OA / Grant
This Examiner 1 70.2% 2.10
Art Unit 21 71.4% 2.09
Group 207 56.7% 2.42
Tech Center 1,727 60.4% 2.14
USPTO 16,116 54.8% 1.98

Grant Timeline

0.0% 25.0% 50.0% 75.0% 100.0% 2008 2009 2010 2011 2012 2013 2014 2015 2021 2025
Shaded region marks the last two observed years, where grant outcomes may lag due to recency.
Year Applications Granted Grant Rate
No observed data before 2008; examiner may not yet have been active in the available dataset.
2008 3 0 0.0%
2009 34 12 35.3%
2010 49 33 67.3%
2011 43 36 83.7%
2012 29 22 75.9%
2013 29 24 82.8%
2014 28 24 85.7%
2015 7 7 100.0%
No observed data for 2016-2020.
2021 2 0 0.0%
No observed data for 2022-2024.
2025 1 0 0.0%
No observed data after 2025; examiner may have gone inactive or moved out of examining work.

158 family-cache-validated grants; 0 OA-only grant signals.

Rejection Timeline

OA # Office Actions § 101 Percentage § 102 Percentage § 103 Percentage § 112 Percentage
1 224 0.0% 4.9% 92.0% 0.4%
2 147 0.7% 3.4% 94.6% 0.0%
3 55 0.0% 5.5% 94.5% 0.0%
4 24 4.2% 0.0% 95.8% 0.0%
5 10 0.0% 0.0% 100.0% 0.0%
6 1 0.0% 0.0% 100.0% 0.0%

§ 101 Yearly Trend

2014: Alice
2019: PEG
2024: AI Examples
0.0%
2008
0.0%
2009
0.9%
2010
0.0%
2011
1.9%
2012
0.0%
2013
0.0%
2014
0.0%
2015
0.0%
2021
0.0%
2025

Each bar shows the share of this examiner's observed office actions in that year that included a § 101 rejection.