Examiner Dung T. Nguyen
Grant ratio: 82.0% (88th percentile in Art Unit 2871 among examiners with at least 20 applications). Average office actions per grant: 1.47. Most common rejection type: §103.
Appears inactive
Last office action in data: August 2015
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 44 | 58.4% | 1.93 |
| Group | 352 | 60.5% | 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 | 0 | 0.0% |
| 1 OA | 232 | 68.6% |
| 2 OAs | 74 | 21.9% |
| 3 OAs | 20 | 5.9% |
| 4 OAs | 12 | 3.6% |
| 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 | 45 | 34 | 75.6% |
| 2009 | 47 | 41 | 87.2% |
| 2010 | 47 | 38 | 80.9% |
| 2011 | 41 | 34 | 82.9% |
| 2012 | 44 | 35 | 79.5% |
| 2013 | 53 | 45 | 84.9% |
| 2014 | 34 | 28 | 82.4% |
| 2015 | 27 | 22 | 81.5% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 338 | 0.0% | 12.7% | 53.6% | 30.5% |
| Action 2 | 106 | 0.0% | 9.4% | 50.0% | 34.0% |
| Action 3 | 32 | 0.0% | 9.4% | 56.3% | 31.3% |
| Action 4 | 12 | 0.0% | 0.0% | 33.3% | 41.7% |
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%
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.