Examiner Mary C Leverett
Grant ratio: 31.4% (95th percentile in Art Unit 1687 among examiners with at least 20 applications). Average office actions per grant: 2.61. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 97530
- Primary art unit
- 1687
- Work group
- 1680
- Technology center
- 1600
- Applications
- 121
- Granted applications
- 38
- Examiner phone
- (571) 272-5494
- Supervisor
- Karlheinz R. Skowronek
- Supervisor phone
- (571) 272-9047
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 15 | 5.1% | 2.73 |
| Group | 68 | 6.4% | 2.37 |
| 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 | 10 | 8.3% |
| 1 OA | 39 | 32.2% |
| 2 OAs | 29 | 24.0% |
| 3 OAs | 16 | 13.2% |
| 4 OAs | 18 | 14.9% |
| 5+ OAs | 9 | 7.4% |
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 |
|---|---|---|---|
| 2022 | 1 | 0 | 0.0% |
| 2023 | 23 | 11 | 47.8% |
| 2024 | 28 | 15 | 53.6% |
| 2025 | 39 | 12 | 30.8% |
| 2026 | 30 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 111 | 12.6% | 8.1% | 65.8% | 0.0% |
| Action 2 | 72 | 26.4% | 6.9% | 54.2% | 4.2% |
| Action 3 | 43 | 41.9% | 2.3% | 46.5% | 2.3% |
| Action 4 | 27 | 63.0% | 0.0% | 33.3% | 0.0% |
| Action 5 | 9 | 77.8% | 0.0% | 22.2% | 0.0% |
| Action 6 | 4 | 50.0% | 0.0% | 50.0% | 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%
20.9%
2024: AI examples
35.7%
2025: August memo
42.3%
18.8%
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.