Examiner Dean Mazzola
Grant ratio: 72.7% (95th percentile in Art Unit 1738 among examiners with at least 20 applications). Average office actions per grant: 1.91. Most common rejection type: §103.
Appears inactive
Last office action in data: November 2023
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 13 | 39.2% | 1.74 |
| Group | 191 | 48.8% | 1.97 |
| Tech Center | 1,792 | 44.3% | 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 | 64 | 40.5% |
| 2 OAs | 55 | 34.8% |
| 3 OAs | 27 | 17.1% |
| 4 OAs | 9 | 5.7% |
| 5+ OAs | 3 | 1.9% |
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 |
|---|---|---|---|
| 2020 | 22 | 16 | 72.7% |
| 2021 | 43 | 25 | 58.1% |
| 2022 | 33 | 26 | 78.8% |
| 2023 | 34 | 29 | 85.3% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 158 | 1.3% | 6.3% | 77.2% | 5.1% |
| Action 2 | 94 | 0.0% | 4.3% | 74.5% | 12.8% |
| Action 3 | 39 | 0.0% | 2.6% | 69.2% | 17.9% |
| Action 4 | 12 | 0.0% | 0.0% | 83.3% | 8.3% |
| Action 5 | 3 | 0.0% | 0.0% | 66.7% | 0.0% |
| Action 6 | 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%
2.1%
0.0%
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.