Examiner Dung T Ulsh
Grant ratio: 64.1% (69th percentile in Art Unit 3783 among examiners with at least 20 applications). Average office actions per grant: 1.90. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 93629
- Primary art unit
- 3783
- Work group
- 3780
- Technology center
- 3700
- Applications
- 393
- Granted applications
- 252
- Examiner phone
- (571) 272-9894
- Supervisor
- Bhisma Mehta
- Supervisor phone
- (571) 272-3383
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 81 | 45.9% | 1.98 |
| Group | 297 | 41.7% | 1.90 |
| 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 | 7 | 1.8% |
| 1 OA | 194 | 49.4% |
| 2 OAs | 107 | 27.2% |
| 3 OAs | 56 | 14.2% |
| 4 OAs | 20 | 5.1% |
| 5+ OAs | 9 | 2.3% |
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 |
|---|---|---|---|
| 2017 | 15 | 10 | 66.7% |
| 2018 | 47 | 28 | 59.6% |
| 2019 | 44 | 35 | 79.5% |
| 2020 | 39 | 28 | 71.8% |
| 2021 | 29 | 21 | 72.4% |
| 2022 | 54 | 42 | 77.8% |
| 2023 | 52 | 45 | 86.5% |
| 2024 | 33 | 31 | 93.9% |
| 2025 | 37 | 12 | 32.4% |
| 2026 | 43 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 386 | 1.0% | 15.0% | 64.5% | 3.9% |
| Action 2 | 192 | 0.0% | 10.9% | 78.6% | 3.6% |
| Action 3 | 85 | 0.0% | 8.2% | 83.5% | 5.9% |
| Action 4 | 29 | 0.0% | 0.0% | 93.1% | 3.4% |
| Action 5 | 9 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 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%
0.0%
2019: PEG
0.0%
1.2%
0.0%
2.5%
0.0%
2024: AI examples
2.0%
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.