Examiner Jacob Y. Choi
Grant ratio: 43.6% (64th percentile in Art Unit 2885 among examiners with at least 20 applications). Average office actions per grant: 1.49. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 78498
- Primary art unit
- 2885
- Work group
- 2880
- Technology center
- 2800
- Applications
- 211
- Granted applications
- 92
- Examiner phone
- (571) 272-2367
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 7 | 41.2% | 1.67 |
| Group | 164 | 64.4% | 1.71 |
| Tech Center | 2,435 | 61.3% | 1.69 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 3 | 1.4% |
| 1 OA | 129 | 61.1% |
| 2 OAs | 62 | 29.4% |
| 3 OAs | 14 | 6.6% |
| 4 OAs | 3 | 1.4% |
| 5+ OAs | 0 | 0.0% |
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 | 51 | 24 | 47.1% |
| 2009 | 93 | 54 | 58.1% |
| 2010 | 21 | 14 | 66.7% |
| 2011 | 14 | 0 | 0.0% |
| 2012 | 16 | 0 | 0.0% |
| 2013 | 5 | 0 | 0.0% |
| 2014 | 1 | 0 | 0.0% |
| 2015 | 1 | 0 | 0.0% |
| 2025 | 3 | 0 | 0.0% |
| 2026 | 6 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 208 | 0.0% | 13.5% | 84.6% | 1.0% |
| Action 2 | 79 | 0.0% | 13.9% | 82.3% | 1.3% |
| Action 3 | 17 | 0.0% | 11.8% | 88.2% | 0.0% |
| Action 4 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-23–2026-10-23. 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%
2025: August memo
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 Oct. 30, 2026.