Examiner Elena V Vishnyakova
Grant ratio: 2.5% (50th percentile in Art Unit 1691 among examiners with at least 20 applications). Average office actions per grant: 1.00. Most common rejection type: §103.
Recently active
Last office action in data: October 2026
Examiner record
- Examiner ID
- 100562
- Primary art unit
- 1691
- Work group
- 1690
- Technology center
- 1600
- Applications
- 79
- Granted applications
- 2
- Examiner phone
- (571) 272-3781
- Supervisor
- Renee Claytor
- Supervisor phone
- (571) 272-8394
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 6 | 4.3% | 1.17 |
| Group | 18 | 12.0% | 1.42 |
| Tech Center | 1,383 | 37.4% | 2.02 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 1 | 1.3% |
| 1 OA | 46 | 58.2% |
| 2 OAs | 23 | 29.1% |
| 3 OAs | 7 | 8.9% |
| 4 OAs | 2 | 2.5% |
| 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 |
|---|---|---|---|
| 2024 | 1 | 0 | 0.0% |
| 2025 | 26 | 2 | 7.7% |
| 2026 | 52 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 78 | 1.3% | 6.4% | 46.2% | 5.1% |
| Action 2 | 32 | 0.0% | 3.1% | 50.0% | 3.1% |
| Action 3 | 9 | 0.0% | 11.1% | 66.7% | 0.0% |
| Action 4 | 2 | 0.0% | 0.0% | 50.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-23–2026-10-23. All years includes every dated office action in the data.
By year
2024: AI examples
0.0%
2025: August memo
0.0%
1.5%
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 Oct. 30, 2026.