Examiner Minh D. Dao
Grant ratio: 89.2% (98th percentile in Art Unit 2618 among examiners with at least 20 applications). Average office actions per grant: 1.34. Most common rejection type: §103.
Appears inactive
Last office action in data: December 2015
Examiner record
Save this analysis
Download this examiner report.
Log in / Sign Up to exportPeer comparisons
| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 29 | 56.5% | 1.87 |
| 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 | 362 | 74.0% |
| 2 OAs | 101 | 20.7% |
| 3 OAs | 19 | 3.9% |
| 4 OAs | 4 | 0.8% |
| 5+ OAs | 3 | 0.6% |
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 | 66 | 49 | 74.2% |
| 2009 | 76 | 62 | 81.6% |
| 2010 | 69 | 64 | 92.8% |
| 2011 | 61 | 52 | 85.2% |
| 2012 | 61 | 59 | 96.7% |
| 2013 | 63 | 61 | 96.8% |
| 2014 | 61 | 58 | 95.1% |
| 2015 | 32 | 31 | 96.9% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 489 | 2.5% | 27.4% | 48.1% | 1.4% |
| Action 2 | 127 | 0.8% | 11.8% | 64.6% | 0.0% |
| Action 3 | 26 | 0.0% | 11.5% | 69.2% | 0.0% |
| Action 4 | 7 | 0.0% | 28.6% | 57.1% | 0.0% |
| Action 5 | 3 | 0.0% | 0.0% | 66.7% | 33.3% |
Section 101 rejections
Last 3 years: 2023-08-28–2026-08-28. All years includes every dated office action in the data.
By year
1.7%
0.9%
1.1%
1.3%
2.6%
1.4%
2014: Alice
5.6%
2.9%
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.