Examiner Grace C Hsu
Grant ratio: 17.6% (13th percentile in Art Unit 1624 among examiners with at least 20 applications). Average office actions per grant: 1.25. Most common rejection type: §103.
Recently active
Last office action in data: July 2026
Examiner record
- Examiner ID
- 77391
- Primary art unit
- 1624
- Work group
- 1620
- Technology center
- 1600
- Applications
- 68
- Granted applications
- 12
- Examiner phone
- (571) 270-1689
- Supervisor
- Kortney L. Klinkel
- Supervisor phone
- (571) 270-5230
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 32 | 54.6% | 1.59 |
| Group | 252 | 46.0% | 1.76 |
| Tech Center | 1,373 | 38.0% | 2.02 |
| 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 | 46 | 67.6% |
| 2 OAs | 20 | 29.4% |
| 3 OAs | 2 | 2.9% |
| 4 OAs | 0 | 0.0% |
| 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 |
|---|---|---|---|
| 2024 | 3 | 2 | 66.7% |
| 2025 | 42 | 10 | 23.8% |
| 2026 | 23 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 68 | 1.5% | 23.5% | 35.3% | 20.6% |
| Action 2 | 22 | 0.0% | 13.6% | 27.3% | 54.5% |
| Action 3 | 2 | 0.0% | 50.0% | 0.0% | 50.0% |
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
20.0%
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.