Examiner Peter J. Macchiarolo
Grant ratio: 70.0% (50th percentile in Art Unit 2879 among examiners with at least 20 applications). Average office actions per grant: 1.64. Most common rejection type: §103.
Potentially inactive
Last office action in data: June 2026
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 17 | 64.2% | 1.76 |
| Group | 351 | 61.2% | 1.71 |
| 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 | 1 | 0.4% |
| 1 OA | 155 | 61.3% |
| 2 OAs | 64 | 25.3% |
| 3 OAs | 19 | 7.5% |
| 4 OAs | 10 | 4.0% |
| 5+ OAs | 4 | 1.6% |
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 | 40 | 32 | 80.0% |
| 2009 | 59 | 44 | 74.6% |
| 2010 | 68 | 50 | 73.5% |
| 2011 | 61 | 48 | 78.7% |
| 2012 | 2 | 1 | 50.0% |
| 2013 | 1 | 0 | 0.0% |
| 2014 | 3 | 0 | 0.0% |
| 2015 | 3 | 1 | 33.3% |
| 2016 | 3 | 0 | 0.0% |
| 2025 | 8 | 1 | 12.5% |
| 2026 | 5 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 252 | 0.0% | 16.3% | 69.0% | 11.5% |
| Action 2 | 97 | 0.0% | 10.3% | 78.4% | 8.2% |
| Action 3 | 33 | 0.0% | 12.1% | 84.8% | 3.0% |
| Action 4 | 14 | 0.0% | 0.0% | 78.6% | 7.1% |
| Action 5 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 1 | 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%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
0.0%
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.