Examiner Da T. Ton
Grant ratio: 64.5% (61st percentile in Art Unit 2445 among examiners with at least 20 applications). Average office actions per grant: 3.58. Most common rejection type: §103.
Appears inactive
Last office action in data: April 2024
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 25 | 53.7% | 2.46 |
| Group | 208 | 56.0% | 2.42 |
| Tech Center | 1,754 | 58.4% | 2.14 |
| 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 | 28 | 15.8% |
| 2 OAs | 39 | 22.0% |
| 3 OAs | 33 | 18.6% |
| 4 OAs | 35 | 19.8% |
| 5+ OAs | 42 | 23.7% |
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 |
|---|---|---|---|
| 2014 | 4 | 0 | 0.0% |
| 2015 | 13 | 4 | 30.8% |
| 2016 | 16 | 9 | 56.3% |
| 2017 | 23 | 11 | 47.8% |
| 2018 | 20 | 14 | 70.0% |
| 2019 | 20 | 13 | 65.0% |
| 2020 | 16 | 12 | 75.0% |
| 2021 | 16 | 14 | 87.5% |
| 2022 | 11 | 9 | 81.8% |
| 2023 | 14 | 12 | 85.7% |
| 2024 | 2 | 2 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 177 | 0.0% | 3.4% | 96.0% | 0.6% |
| Action 2 | 149 | 0.0% | 2.0% | 97.3% | 0.7% |
| Action 3 | 110 | 0.9% | 0.0% | 98.2% | 0.9% |
| Action 4 | 77 | 1.3% | 0.0% | 98.7% | 0.0% |
| Action 5 | 42 | 0.0% | 2.4% | 95.2% | 2.4% |
| Action 6 | 27 | 3.7% | 3.7% | 88.9% | 3.7% |
| Action 7 | 10 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 8 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 9 | 5 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 10 | 2 | 0.0% | 50.0% | 50.0% | 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
2014: Alice
0.0%
0.0%
0.0%
0.0%
4.2%
2019: PEG
0.0%
0.0%
0.0%
0.0%
0.0%
2024: AI examples
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.