Examiner Derek Biehn
Grant ratio: 0.0% (3rd percentile in Art Unit 3621 among examiners with at least 20 applications). Most common rejection type: §103.
Appears inactive
Last office action in data: June 2016
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 24 | 23.5% | 3.54 |
| Group | 364 | 26.5% | 2.85 |
| Tech Center | 2,381 | 46.2% | 2.12 |
| 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 | 10 | 20.4% |
| 2 OAs | 15 | 30.6% |
| 3 OAs | 10 | 20.4% |
| 4 OAs | 7 | 14.3% |
| 5+ OAs | 7 | 14.3% |
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 |
|---|---|---|---|
| 2012 | 2 | 0 | 0.0% |
| 2013 | 11 | 0 | 0.0% |
| 2014 | 14 | 0 | 0.0% |
| 2015 | 17 | 0 | 0.0% |
| 2016 | 5 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 49 | 0.0% | 12.2% | 87.8% | 0.0% |
| Action 2 | 39 | 0.0% | 2.6% | 94.9% | 0.0% |
| Action 3 | 24 | 0.0% | 4.2% | 91.7% | 0.0% |
| Action 4 | 14 | 0.0% | 0.0% | 92.9% | 0.0% |
| Action 5 | 7 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 1 | 100.0% | 0.0% | 0.0% | 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%
3.8%
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.