Examiner Hien Vo
Grant ratio: 82.6% (89th percentile in Art Unit 2863 among examiners with at least 20 applications). Average office actions per grant: 1.69. Most common rejection type: §103.
Appears inactive
Last office action in data: March 2015
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 42 | 59.1% | 1.74 |
| Group | 130 | 67.0% | 1.82 |
| Tech Center | 2,428 | 61.6% | 1.69 |
| USPTO | 16,572 | 52.1% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 161 | 57.3% |
| 2 OAs | 64 | 22.8% |
| 3 OAs | 38 | 13.5% |
| 4 OAs | 13 | 4.6% |
| 5+ OAs | 5 | 1.8% |
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 | 27 | 25 | 92.6% |
| 2009 | 45 | 40 | 88.9% |
| 2010 | 43 | 42 | 97.7% |
| 2011 | 32 | 27 | 84.4% |
| 2012 | 25 | 18 | 72.0% |
| 2013 | 62 | 47 | 75.8% |
| 2014 | 42 | 28 | 66.7% |
| 2015 | 5 | 5 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 281 | 13.5% | 21.4% | 57.7% | 3.9% |
| Action 2 | 120 | 15.0% | 15.8% | 60.0% | 3.3% |
| Action 3 | 56 | 14.3% | 8.9% | 73.2% | 1.8% |
| Action 4 | 18 | 44.4% | 11.1% | 44.4% | 0.0% |
| Action 5 | 5 | 20.0% | 20.0% | 60.0% | 0.0% |
| Action 6 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-02–2026-10-02. All years includes every dated office action in the data.
By year
3.0%
12.2%
35.3%
26.0%
13.0%
8.5%
2014: Alice
12.5%
40.0%
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. 9, 2026.