Examiner Liliana Cerullo
Grant ratio: 11.5% (3rd percentile in Art Unit 2161 among examiners with at least 20 applications). Average office actions per grant: 1.00. Most common rejection type: §103.
Recently active
Last office action in data: October 2026
Examiner record
- Examiner ID
- 96040
- Primary art unit
- 2161
- Work group
- 2480
- Technology center
- 3700
- Applications
- 824
- Granted applications
- 95
- Examiner phone
- (571) 270-5882
- Supervisor
- Troy Chambers
- Supervisor phone
- (571) 270-3445
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 20 | 56.5% | 2.44 |
| Group | 174 | 58.9% | 2.00 |
| Tech Center | 2,685 | 47.8% | 2.01 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 1,081 | 95.9% |
| 2 OAs | 46 | 4.1% |
| 3 OAs | 0 | 0.0% |
| 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 | 112 | 95 | 84.8% |
| 2026 | 712 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,127 | 4.4% | 9.8% | 51.6% | 6.9% |
| Action 2 | 46 | 4.3% | 4.3% | 52.2% | 8.7% |
Section 101 rejections
Last 3 years: 2023-10-23–2026-10-23. All years includes every dated office action in the data.
By year
2024: AI examples
6.4%
4.1%
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 Oct. 30, 2026.