Examiner Paul W Arellano
Grant ratio: 40.5% (36th percentile in Art Unit 3667 among examiners with at least 20 applications). Average office actions per grant: 2.29. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 98271
- Primary art unit
- 3667
- Work group
- 3660
- Technology center
- 3600
- Applications
- 84
- Granted applications
- 34
- Examiner phone
- (571) 270-0102
- Supervisor
- Vivek Koppikar
- Supervisor phone
- (571) 272-5109
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 50 | 51.3% | 1.86 |
| Group | 454 | 54.1% | 1.86 |
| 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 | 28 | 32.6% |
| 2 OAs | 35 | 40.7% |
| 3 OAs | 17 | 19.8% |
| 4 OAs | 3 | 3.5% |
| 5+ OAs | 3 | 3.5% |
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 |
|---|---|---|---|
| 2023 | 3 | 1 | 33.3% |
| 2024 | 30 | 20 | 66.7% |
| 2025 | 30 | 13 | 43.3% |
| 2026 | 21 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 86 | 1.2% | 16.3% | 80.2% | 1.2% |
| Action 2 | 58 | 1.7% | 12.1% | 79.3% | 6.9% |
| Action 3 | 23 | 0.0% | 8.7% | 87.0% | 4.3% |
| Action 4 | 6 | 0.0% | 33.3% | 50.0% | 16.7% |
| Action 5 | 3 | 0.0% | 33.3% | 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%
2024: AI examples
1.4%
2025: August memo
1.6%
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.