Examiner Chuong A. Luu
Grant ratio: 91.2% (96th percentile in Art Unit 2898 among examiners with at least 20 applications). Average office actions per grant: 1.50. Most common rejection type: §103.
Appears inactive
Last office action in data: April 2025
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 43 | 46.9% | 1.70 |
| Group | 288 | 53.7% | 1.76 |
| 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 | 2 | 0.2% |
| 1 OA | 863 | 65.1% |
| 2 OAs | 322 | 24.3% |
| 3 OAs | 86 | 6.5% |
| 4 OAs | 38 | 2.9% |
| 5+ OAs | 15 | 1.1% |
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 | 83 | 69 | 83.1% |
| 2009 | 70 | 57 | 81.4% |
| 2010 | 92 | 83 | 90.2% |
| 2011 | 95 | 87 | 91.6% |
| 2012 | 99 | 86 | 86.9% |
| 2013 | 74 | 67 | 90.5% |
| 2014 | 80 | 70 | 87.5% |
| 2015 | 76 | 64 | 84.2% |
| 2016 | 92 | 88 | 95.7% |
| 2017 | 90 | 88 | 97.8% |
| 2018 | 72 | 66 | 91.7% |
| 2019 | 87 | 82 | 94.3% |
| 2020 | 70 | 69 | 98.6% |
| 2021 | 58 | 55 | 94.8% |
| 2022 | 47 | 45 | 95.7% |
| 2023 | 65 | 63 | 96.9% |
| 2024 | 60 | 59 | 98.3% |
| 2025 | 16 | 11 | 68.8% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,324 | 0.5% | 24.2% | 59.1% | 0.0% |
| Action 2 | 461 | 0.0% | 34.5% | 59.4% | 0.0% |
| Action 3 | 139 | 0.0% | 25.2% | 68.3% | 0.0% |
| Action 4 | 53 | 0.0% | 28.3% | 66.0% | 0.0% |
| Action 5 | 15 | 0.0% | 33.3% | 66.7% | 0.0% |
| Action 6 | 5 | 0.0% | 40.0% | 60.0% | 0.0% |
| Action 7 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 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%
1.1%
0.0%
0.7%
0.0%
0.0%
2014: Alice
0.0%
0.8%
0.0%
0.0%
1.9%
2019: PEG
0.0%
0.0%
1.4%
0.0%
0.0%
2024: AI examples
0.0%
2025: August memo
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.