Examiner Esayas G Yeshaw
Grant ratio: 78.4% (69th percentile in Art Unit 2836 among examiners with at least 20 applications). Average office actions per grant: 1.29. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 91494
- Primary art unit
- 2836
- Work group
- 2830
- Technology center
- 2800
- Applications
- 704
- Granted applications
- 552
- Examiner phone
- (571) 270-1959
- Supervisor
- Rexford Barine
- Supervisor phone
- (571) 272-2391
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 54 | 69.9% | 1.68 |
| Group | 354 | 67.0% | 1.58 |
| 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 | 2 | 0.3% |
| 1 OA | 522 | 74.1% |
| 2 OAs | 141 | 20.0% |
| 3 OAs | 27 | 3.8% |
| 4 OAs | 9 | 1.3% |
| 5+ OAs | 3 | 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 |
|---|---|---|---|
| 2014 | 3 | 1 | 33.3% |
| 2015 | 65 | 47 | 72.3% |
| 2016 | 76 | 67 | 88.2% |
| 2017 | 85 | 71 | 83.5% |
| 2018 | 68 | 59 | 86.8% |
| 2019 | 72 | 66 | 91.7% |
| 2020 | 67 | 60 | 89.6% |
| 2021 | 55 | 52 | 94.5% |
| 2022 | 43 | 40 | 93.0% |
| 2023 | 36 | 32 | 88.9% |
| 2024 | 44 | 40 | 90.9% |
| 2025 | 58 | 17 | 29.3% |
| 2026 | 32 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 702 | 0.3% | 23.6% | 71.8% | 0.6% |
| Action 2 | 180 | 0.0% | 21.1% | 77.2% | 0.0% |
| Action 3 | 39 | 0.0% | 25.6% | 71.8% | 0.0% |
| Action 4 | 12 | 0.0% | 33.3% | 66.7% | 0.0% |
| Action 5 | 3 | 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
2014: Alice
0.0%
0.0%
0.0%
0.0%
0.0%
2019: PEG
0.0%
0.0%
0.0%
0.0%
0.0%
2024: AI examples
3.7%
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.