Examiner Michael P. Stafira
Grant ratio: 83.3% (62nd percentile in Art Unit 2886 among examiners with at least 20 applications). Average office actions per grant: 1.26. Most common rejection type: §103.
Recently active
Last office action in data: September 2026
Examiner record
- Examiner ID
- 73583
- Primary art unit
- 2886
- Work group
- 2880
- Technology center
- 2800
- Applications
- 1,311
- Granted applications
- 1,092
- Examiner phone
- (571) 272-2430
- Supervisor
- Tarifur Chowdhury
- Supervisor phone
- (571) 272-2286
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 17 | 77.1% | 1.61 |
| Group | 164 | 64.6% | 1.71 |
| Tech Center | 2,428 | 61.6% | 1.69 |
| USPTO | 16,572 | 52.1% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 1 | 0.1% |
| 1 OA | 1,028 | 78.4% |
| 2 OAs | 224 | 17.1% |
| 3 OAs | 45 | 3.4% |
| 4 OAs | 9 | 0.7% |
| 5+ OAs | 4 | 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 | 65 | 55 | 84.6% |
| 2009 | 68 | 57 | 83.8% |
| 2010 | 71 | 62 | 87.3% |
| 2011 | 67 | 60 | 89.6% |
| 2012 | 79 | 68 | 86.1% |
| 2013 | 84 | 77 | 91.7% |
| 2014 | 73 | 68 | 93.2% |
| 2015 | 59 | 53 | 89.8% |
| 2016 | 89 | 80 | 89.9% |
| 2017 | 65 | 62 | 95.4% |
| 2018 | 68 | 62 | 91.2% |
| 2019 | 61 | 55 | 90.2% |
| 2020 | 67 | 59 | 88.1% |
| 2021 | 67 | 63 | 94.0% |
| 2022 | 77 | 66 | 85.7% |
| 2023 | 74 | 66 | 89.2% |
| 2024 | 61 | 47 | 77.0% |
| 2025 | 69 | 32 | 46.4% |
| 2026 | 47 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,310 | 1.8% | 26.0% | 67.1% | 2.0% |
| Action 2 | 282 | 1.1% | 21.6% | 69.9% | 3.5% |
| Action 3 | 58 | 0.0% | 8.6% | 86.2% | 1.7% |
| Action 4 | 13 | 0.0% | 7.7% | 84.6% | 0.0% |
| Action 5 | 4 | 0.0% | 25.0% | 75.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-02–2026-10-02. All years includes every dated office action in the data.
By year
1.0%
2.3%
0.0%
1.2%
3.3%
1.0%
2014: Alice
2.3%
1.3%
2.7%
2.5%
1.2%
2019: PEG
2.5%
0.0%
0.0%
1.9%
0.0%
2024: AI examples
2.8%
2025: August memo
2.2%
3.9%
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. 9, 2026.