Examiner Arnold Castro
Grant ratio: 88.8% (93rd percentile in Art Unit 3747 among examiners with at least 20 applications). Average office actions per grant: 1.21. Most common rejection type: §103.
Appears inactive
Last office action in data: July 2024
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 54 | 72.3% | 1.66 |
| Group | 444 | 57.6% | 1.86 |
| Tech Center | 2,671 | 48.4% | 2.01 |
| 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 | 394 | 82.8% |
| 2 OAs | 66 | 13.9% |
| 3 OAs | 12 | 2.5% |
| 4 OAs | 2 | 0.4% |
| 5+ OAs | 2 | 0.4% |
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 | 22 | 21 | 95.5% |
| 2009 | 10 | 7 | 70.0% |
| 2010 | 8 | 6 | 75.0% |
| 2011 | 20 | 18 | 90.0% |
| 2012 | 46 | 42 | 91.3% |
| 2013 | 50 | 41 | 82.0% |
| 2014 | 32 | 30 | 93.8% |
| 2015 | 36 | 33 | 91.7% |
| 2016 | 44 | 40 | 90.9% |
| 2017 | 40 | 36 | 90.0% |
| 2018 | 47 | 42 | 89.4% |
| 2019 | 22 | 20 | 90.9% |
| 2020 | 24 | 20 | 83.3% |
| 2021 | 13 | 12 | 92.3% |
| 2022 | 32 | 29 | 90.6% |
| 2023 | 19 | 15 | 78.9% |
| 2024 | 9 | 9 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 476 | 1.1% | 41.4% | 43.1% | 12.0% |
| Action 2 | 82 | 2.4% | 37.8% | 52.4% | 4.9% |
| Action 3 | 16 | 0.0% | 31.3% | 62.5% | 6.3% |
| Action 4 | 4 | 0.0% | 25.0% | 75.0% | 0.0% |
| Action 5 | 2 | 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%
0.0%
0.0%
2014: Alice
4.9%
2.2%
3.3%
2.3%
1.8%
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.