Examiner Mary Ann Calabrese
Grant ratio: 85.0% (9th percentile in Art Unit 2913 among examiners with at least 20 applications). Average office actions per grant: 1.21. Most common rejection type: §112.
Recently active
Last office action in data: July 2026
Examiner record
- Examiner ID
- 81266
- Primary art unit
- 2913
- Work group
- 2900-WG
- Technology center
- 2900
- Applications
- 1,216
- Granted applications
- 1,033
- Examiner phone
- (571) 272-8704
- Supervisor
- Caron Veynar
- Supervisor phone
- (571) 272-2646
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 30 | 89.2% | 1.24 |
| Group | 461 | 94.9% | 1.19 |
| Tech Center | 486 | 94.6% | 1.20 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 2 | 0.2% |
| 1 OA | 991 | 81.5% |
| 2 OAs | 206 | 16.9% |
| 3 OAs | 11 | 0.9% |
| 4 OAs | 4 | 0.3% |
| 5+ OAs | 2 | 0.2% |
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 | 49 | 43 | 87.8% |
| 2009 | 76 | 69 | 90.8% |
| 2010 | 74 | 71 | 95.9% |
| 2011 | 83 | 83 | 100.0% |
| 2012 | 59 | 59 | 100.0% |
| 2013 | 51 | 50 | 98.0% |
| 2014 | 34 | 34 | 100.0% |
| 2015 | 38 | 36 | 94.7% |
| 2016 | 82 | 73 | 89.0% |
| 2017 | 100 | 62 | 62.0% |
| 2018 | 156 | 106 | 67.9% |
| 2019 | 83 | 73 | 88.0% |
| 2020 | 78 | 63 | 80.8% |
| 2021 | 66 | 50 | 75.8% |
| 2022 | 91 | 74 | 81.3% |
| 2023 | 51 | 47 | 92.2% |
| 2024 | 36 | 35 | 97.2% |
| 2025 | 5 | 5 | 100.0% |
| 2026 | 4 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,214 | 0.0% | 5.5% | 3.6% | 79.6% |
| Action 2 | 223 | 0.0% | 2.2% | 7.6% | 71.7% |
| Action 3 | 17 | 0.0% | 5.9% | 23.5% | 47.1% |
| Action 4 | 6 | 0.0% | 0.0% | 16.7% | 83.3% |
| Action 5 | 2 | 0.0% | 0.0% | 0.0% | 100.0% |
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%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
0.0%
0.0%
0.0%
0.0%
2019: PEG
0.0%
0.0%
0.0%
0.0%
0.0%
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.