Examiner Nicholas Ponomarenko
Grant ratio: 58.6% (10th percentile in Art Unit 2839 among examiners with at least 20 applications). Average office actions per grant: 1.18. Most common rejection type: §103.
Appears inactive
Last office action in data: June 2014
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 6 | 75.6% | 1.42 |
| Group | 354 | 67.0% | 1.58 |
| 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 | 0 | 0.0% |
| 1 OA | 187 | 84.2% |
| 2 OAs | 28 | 12.6% |
| 3 OAs | 4 | 1.8% |
| 4 OAs | 2 | 0.9% |
| 5+ OAs | 1 | 0.5% |
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 | 23 | 10 | 43.5% |
| 2009 | 43 | 25 | 58.1% |
| 2010 | 50 | 30 | 60.0% |
| 2011 | 31 | 24 | 77.4% |
| 2012 | 37 | 17 | 45.9% |
| 2013 | 33 | 20 | 60.6% |
| 2014 | 5 | 4 | 80.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 222 | 12.6% | 10.8% | 34.2% | 30.6% |
| Action 2 | 35 | 5.7% | 5.7% | 25.7% | 45.7% |
| Action 3 | 7 | 0.0% | 0.0% | 57.1% | 42.9% |
| Action 4 | 3 | 0.0% | 0.0% | 66.7% | 33.3% |
| Action 5 | 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
10.0%
14.0%
13.6%
5.0%
17.9%
2.6%
2014: Alice
20.0%
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.