Examiner Cheng Lu
Grant ratio: 36.4% (34th percentile in Art Unit 1642 among examiners with at least 20 applications). Average office actions per grant: 2.09. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 95754
- Primary art unit
- 1642
- Work group
- 1640
- Technology center
- 1600
- Applications
- 286
- Granted applications
- 104
- Examiner phone
- (571) 272-0334
- Supervisor
- Samira Jean-Louis
- Supervisor phone
- (571) 270-3503
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 21 | 42.1% | 1.94 |
| Group | 222 | 43.5% | 1.94 |
| 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 | 0.3% |
| 1 OA | 113 | 39.5% |
| 2 OAs | 96 | 33.6% |
| 3 OAs | 35 | 12.2% |
| 4 OAs | 25 | 8.7% |
| 5+ OAs | 16 | 5.6% |
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 |
|---|---|---|---|
| 2020 | 3 | 2 | 66.7% |
| 2021 | 36 | 19 | 52.8% |
| 2022 | 38 | 25 | 65.8% |
| 2023 | 44 | 27 | 61.4% |
| 2024 | 48 | 22 | 45.8% |
| 2025 | 44 | 9 | 20.5% |
| 2026 | 73 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 285 | 1.1% | 5.3% | 30.2% | 9.5% |
| Action 2 | 172 | 0.6% | 5.8% | 25.6% | 33.7% |
| Action 3 | 76 | 3.9% | 3.9% | 23.7% | 28.9% |
| Action 4 | 41 | 0.0% | 2.4% | 31.7% | 31.7% |
| Action 5 | 16 | 0.0% | 0.0% | 37.5% | 25.0% |
| Action 6 | 8 | 12.5% | 0.0% | 62.5% | 25.0% |
| Action 7 | 3 | 0.0% | 0.0% | 66.7% | 33.3% |
| Action 8 | 3 | 0.0% | 0.0% | 66.7% | 0.0% |
| Action 9 | 2 | 0.0% | 0.0% | 50.0% | 50.0% |
| Action 10 | 1 | 0.0% | 0.0% | 0.0% | 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%
1.1%
0.0%
0.0%
2024: AI examples
0.8%
2025: August memo
3.5%
2.4%
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.