Examiner Boris Pesin
Grant ratio: 41.7% (31st percentile in Art Unit 2174 among examiners with at least 20 applications). Average office actions per grant: 2.40. Most common rejection type: §103.
Appears inactive
Last office action in data: March 2015
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 22 | 46.9% | 2.93 |
| Group | 189 | 48.3% | 2.73 |
| Tech Center | 1,817 | 51.4% | 2.19 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 32 | 33.3% |
| 2 OAs | 25 | 26.0% |
| 3 OAs | 22 | 22.9% |
| 4 OAs | 11 | 11.5% |
| 5+ OAs | 6 | 6.3% |
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 |
|---|---|---|---|
| 2007 | 3 | 2 | 66.7% |
| 2008 | 31 | 12 | 38.7% |
| 2009 | 47 | 24 | 51.1% |
| 2010 | 2 | 2 | 100.0% |
| 2011 | 1 | 0 | 0.0% |
| 2013 | 8 | 0 | 0.0% |
| 2014 | 2 | 0 | 0.0% |
| 2015 | 2 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 96 | 2.1% | 10.4% | 85.4% | 2.1% |
| Action 2 | 64 | 4.7% | 7.8% | 81.3% | 3.1% |
| Action 3 | 39 | 7.7% | 12.8% | 71.8% | 5.1% |
| Action 4 | 17 | 0.0% | 11.8% | 88.2% | 0.0% |
| Action 5 | 6 | 0.0% | 16.7% | 83.3% | 0.0% |
| Action 6 | 1 | 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: 2023-10-23–2026-10-23. All years includes every dated office action in the data.
By year
0.0%
2.7%
7.1%
0.0%
0.0%
0.0%
2014: Alice
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 Oct. 30, 2026.