Examiner Nguyen T. Ha
Grant ratio: 86.9% (98th percentile in Art Unit 2848 among examiners with at least 20 applications). Average office actions per grant: 1.39. Most common rejection type: §103.
Appears inactive
Last office action in data: January 2020
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 24 | 70.3% | 1.70 |
| Group | 231 | 68.9% | 1.60 |
| Tech Center | 2,413 | 62.4% | 1.69 |
| 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 | 605 | 76.7% |
| 2 OAs | 105 | 13.3% |
| 3 OAs | 48 | 6.1% |
| 4 OAs | 14 | 1.8% |
| 5+ OAs | 17 | 2.2% |
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 | 61 | 53 | 86.9% |
| 2009 | 54 | 48 | 88.9% |
| 2010 | 67 | 56 | 83.6% |
| 2011 | 71 | 62 | 87.3% |
| 2012 | 61 | 49 | 80.3% |
| 2013 | 58 | 48 | 82.8% |
| 2014 | 64 | 57 | 89.1% |
| 2015 | 57 | 51 | 89.5% |
| 2016 | 54 | 44 | 81.5% |
| 2017 | 91 | 80 | 87.9% |
| 2018 | 75 | 70 | 93.3% |
| 2019 | 55 | 49 | 89.1% |
| 2020 | 1 | 1 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 789 | 3.2% | 30.2% | 51.0% | 0.3% |
| Action 2 | 184 | 1.1% | 15.8% | 65.8% | 1.1% |
| Action 3 | 79 | 1.3% | 3.8% | 78.5% | 0.0% |
| Action 4 | 31 | 0.0% | 0.0% | 90.3% | 0.0% |
| Action 5 | 17 | 0.0% | 0.0% | 94.1% | 0.0% |
| Action 6 | 4 | 0.0% | 0.0% | 75.0% | 0.0% |
| Action 7 | 1 | 0.0% | 0.0% | 100.0% | 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%
2.6%
3.7%
4.5%
3.1%
2014: Alice
4.5%
3.0%
1.3%
2.1%
2.0%
2019: PEG
5.6%
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.