Examiner Young Choi
Grant ratio: 2.5% (1st percentile in Art Unit 3741 among examiners with at least 20 applications). Average office actions per grant: 3.00. Most common rejection type: §103.
Appears inactive
Last office action in data: September 2021
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 54 | 64.4% | 1.81 |
| Group | 444 | 57.6% | 1.86 |
| Tech Center | 2,671 | 48.4% | 2.01 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 3 | 7.5% |
| 1 OA | 13 | 32.5% |
| 2 OAs | 17 | 42.5% |
| 3 OAs | 4 | 10.0% |
| 4 OAs | 2 | 5.0% |
| 5+ OAs | 1 | 2.5% |
Each application is counted once. “5+” includes all higher counts.
Grant history
Recent ratios may be lower while applications remain pending.
Yearly counts
| Year | Applications | Grants | Grant rate |
|---|---|---|---|
| 2008 | 2 | 1 | 50.0% |
| 2009 | 3 | 0 | 0.0% |
| 2010 | 5 | 0 | 0.0% |
| 2011 | 6 | 0 | 0.0% |
| 2012 | 4 | 0 | 0.0% |
| 2013 | 4 | 0 | 0.0% |
| 2014 | 2 | 0 | 0.0% |
| 2015 | 2 | 0 | 0.0% |
| 2016 | 1 | 0 | 0.0% |
| 2017 | 2 | 0 | 0.0% |
| 2018 | 1 | 0 | 0.0% |
| 2020 | 5 | 0 | 0.0% |
| 2021 | 3 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 37 | 0.0% | 0.0% | 97.3% | 0.0% |
| Action 2 | 24 | 0.0% | 4.2% | 95.8% | 0.0% |
| Action 3 | 7 | 0.0% | 14.3% | 85.7% | 0.0% |
| Action 4 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 5 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-08-28–2026-08-28. All years includes every dated office action in the data.
By year
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
Each bar is the percentage of office actions with a §101 rejection.
PTAB appeals
No PTAB decisions could be matched to this examiner.
Older and transferred applications may not have a reliable examiner match. Data through Aug. 27, 2026.