Examiner Pinaki Das
Grant ratio: 13.2% (25th percentile in Art Unit 2898 among examiners with at least 20 applications). Average office actions per grant: 1.92. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 99399
- Primary art unit
- 2898
- Work group
- 2890
- Technology center
- 2800
- Applications
- 91
- Granted applications
- 12
- Examiner phone
- (703) 756-5641
- Supervisor
- Julio Maldonado
- Supervisor phone
- (571) 272-1864
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 43 | 46.9% | 1.70 |
| Group | 288 | 53.7% | 1.76 |
| Tech Center | 2,413 | 62.4% | 1.69 |
| 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 | 32 | 35.2% |
| 2 OAs | 34 | 37.4% |
| 3 OAs | 15 | 16.5% |
| 4 OAs | 10 | 11.0% |
| 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 |
|---|---|---|---|
| 2025 | 36 | 12 | 33.3% |
| 2026 | 55 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 91 | 0.0% | 13.2% | 79.1% | 5.5% |
| Action 2 | 59 | 0.0% | 6.8% | 88.1% | 3.4% |
| Action 3 | 25 | 0.0% | 8.0% | 80.0% | 4.0% |
| Action 4 | 10 | 0.0% | 10.0% | 80.0% | 10.0% |
Section 101 rejections
Last 3 years: 2023-08-28–2026-08-28. All years includes every dated office action in the data.
By year
2024: AI examples
0.0%
2025: August memo
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.