Examiner Munsoon Choo
Grant ratio: 57.9% (59th percentile in Art Unit 2617 among examiners with at least 20 applications). Average office actions per grant: 2.73. Most common rejection type: §103.
Appears inactive
Last office action in data: January 2013
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 70 | 46.8% | 2.08 |
| Group | 291 | 49.1% | 1.92 |
| Tech Center | 1,754 | 57.4% | 1.88 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 35 | 27.8% |
| 2 OAs | 44 | 34.9% |
| 3 OAs | 16 | 12.7% |
| 4 OAs | 17 | 13.5% |
| 5+ OAs | 14 | 11.1% |
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 |
|---|---|---|---|
| 2009 | 32 | 12 | 37.5% |
| 2010 | 38 | 27 | 71.1% |
| 2011 | 39 | 29 | 74.4% |
| 2012 | 15 | 3 | 20.0% |
| 2013 | 2 | 2 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 126 | 0.0% | 7.9% | 90.5% | 0.0% |
| Action 2 | 91 | 1.1% | 5.5% | 92.3% | 1.1% |
| Action 3 | 47 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 4 | 31 | 0.0% | 0.0% | 90.3% | 0.0% |
| Action 5 | 14 | 0.0% | 0.0% | 78.6% | 0.0% |
| Action 6 | 4 | 25.0% | 0.0% | 75.0% | 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%
1.1%
1.6%
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.