Examiner Kyle Hwa-Kai Tseng
Grant ratio: 7.7% (15th percentile in Art Unit 2189 among examiners with at least 20 applications). Average office actions per grant: 1.50. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 100328
- Primary art unit
- 2189
- Work group
- 2180
- Technology center
- 2100
- Applications
- 52
- Granted applications
- 4
- Examiner phone
- (571) 272-3731
- Supervisor
- Rehana Perveen
- Supervisor phone
- (571) 272-3676
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 13 | 34.4% | 1.81 |
| Group | 178 | 52.5% | 1.89 |
| Tech Center | 1,781 | 52.8% | 2.19 |
| 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 | 17 | 32.7% |
| 2 OAs | 25 | 48.1% |
| 3 OAs | 7 | 13.5% |
| 4 OAs | 3 | 5.8% |
| 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 | 23 | 4 | 17.4% |
| 2026 | 29 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 52 | 3.8% | 3.8% | 84.6% | 5.8% |
| Action 2 | 35 | 11.4% | 0.0% | 85.7% | 0.0% |
| Action 3 | 10 | 10.0% | 0.0% | 80.0% | 0.0% |
| Action 4 | 3 | 33.3% | 0.0% | 66.7% | 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
2024: AI examples
0.0%
2025: August memo
4.9%
13.2%
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.