Examiner Michael Lebentritt
Grant ratio: 87.7% (97th percentile in Art Unit 2829 among examiners with at least 20 applications). Average office actions per grant: 1.23. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 73858
- Primary art unit
- 2829
- Work group
- 2820
- Technology center
- 2800
- Applications
- 1,028
- Granted applications
- 902
- Examiner phone
- (571) 272-1873
- Supervisor
- Sue Purvis
- Supervisor phone
- (571) 272-1236
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 23 | 68.3% | 1.82 |
| Group | 207 | 71.2% | 1.64 |
| Tech Center | 2,413 | 62.4% | 1.69 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 3 | 0.3% |
| 1 OA | 835 | 81.2% |
| 2 OAs | 153 | 14.9% |
| 3 OAs | 27 | 2.6% |
| 4 OAs | 7 | 0.7% |
| 5+ OAs | 3 | 0.3% |
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 |
|---|---|---|---|
| 2008 | 133 | 117 | 88.0% |
| 2009 | 56 | 50 | 89.3% |
| 2010 | 42 | 39 | 92.9% |
| 2011 | 35 | 31 | 88.6% |
| 2012 | 46 | 42 | 91.3% |
| 2013 | 44 | 41 | 93.2% |
| 2014 | 44 | 41 | 93.2% |
| 2015 | 42 | 40 | 95.2% |
| 2016 | 43 | 41 | 95.3% |
| 2017 | 51 | 50 | 98.0% |
| 2018 | 75 | 73 | 97.3% |
| 2019 | 67 | 61 | 91.0% |
| 2020 | 62 | 55 | 88.7% |
| 2021 | 47 | 41 | 87.2% |
| 2022 | 39 | 38 | 97.4% |
| 2023 | 62 | 57 | 91.9% |
| 2024 | 58 | 58 | 100.0% |
| 2025 | 46 | 27 | 58.7% |
| 2026 | 36 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,025 | 3.3% | 13.9% | 60.2% | 1.2% |
| Action 2 | 190 | 8.9% | 9.5% | 62.1% | 1.6% |
| Action 3 | 37 | 8.1% | 5.4% | 64.9% | 0.0% |
| Action 4 | 10 | 0.0% | 0.0% | 60.0% | 0.0% |
| Action 5 | 3 | 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%
0.0%
3.1%
1.8%
0.0%
5.6%
4.0%
2014: Alice
4.2%
0.0%
2.1%
12.7%
24.7%
2019: PEG
2.6%
4.4%
0.0%
6.7%
2.8%
2024: AI examples
0.0%
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.