Examiner Qinhua Gu
Grant ratio: 31.5% (32nd percentile in Art Unit 1633 among examiners with at least 20 applications). Average office actions per grant: 1.49. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 98229
- Primary art unit
- 1633
- Work group
- 1630
- Technology center
- 1600
- Applications
- 130
- Granted applications
- 41
- Examiner phone
- (703) 756-1176
- Supervisor
- Christopher Babic
- Supervisor phone
- (571) 272-8507
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 31 | 37.5% | 2.18 |
| Group | 245 | 37.4% | 2.18 |
| 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 | 1 | 0.8% |
| 1 OA | 67 | 51.5% |
| 2 OAs | 48 | 36.9% |
| 3 OAs | 12 | 9.2% |
| 4 OAs | 2 | 1.5% |
| 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 | 35 | 26 | 74.3% |
| 2025 | 37 | 15 | 40.5% |
| 2026 | 58 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 129 | 0.0% | 7.8% | 68.2% | 7.8% |
| Action 2 | 62 | 1.6% | 0.0% | 75.8% | 9.7% |
| Action 3 | 14 | 0.0% | 0.0% | 64.3% | 21.4% |
| Action 4 | 2 | 0.0% | 0.0% | 50.0% | 50.0% |
| Action 6 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 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%
2024: AI examples
1.7%
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.