Examiner Emily G Castonguay
Grant ratio: 75.0% (69th percentile in Art Unit 3617 among examiners with at least 20 applications). Average office actions per grant: 1.46. Most common rejection type: §103.
Appears inactive
Last office action in data: September 2025
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 23 | 66.8% | 1.55 |
| Group | 162 | 58.7% | 1.45 |
| Tech Center | 2,381 | 46.2% | 2.12 |
| 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 | 119 | 64.3% |
| 2 OAs | 51 | 27.6% |
| 3 OAs | 14 | 7.6% |
| 4 OAs | 1 | 0.5% |
| 5+ OAs | 0 | 0.0% |
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 | 4 | 3 | 75.0% |
| 2021 | 36 | 27 | 75.0% |
| 2022 | 46 | 39 | 84.8% |
| 2023 | 41 | 34 | 82.9% |
| 2024 | 37 | 27 | 73.0% |
| 2025 | 20 | 8 | 40.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 185 | 0.0% | 3.2% | 54.1% | 36.2% |
| Action 2 | 66 | 0.0% | 6.1% | 68.2% | 18.2% |
| Action 3 | 15 | 0.0% | 0.0% | 86.7% | 6.7% |
| Action 4 | 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%
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.