Examiner Delaine Duncan
Grant ratio: 1.6% (12th percentile in Art Unit 3689 among examiners with at least 20 applications). Average office actions per grant: 2.00. Most common rejection type: §103.
Appears inactive
Last office action in data: May 2016
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 33 | 13.8% | 2.82 |
| Group | 285 | 28.7% | 2.80 |
| 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 | 18 | 28.6% |
| 2 OAs | 13 | 20.6% |
| 3 OAs | 8 | 12.7% |
| 4 OAs | 10 | 15.9% |
| 5+ OAs | 14 | 22.2% |
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 |
|---|---|---|---|
| 2012 | 3 | 0 | 0.0% |
| 2013 | 18 | 1 | 5.6% |
| 2014 | 21 | 0 | 0.0% |
| 2015 | 15 | 0 | 0.0% |
| 2016 | 6 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 63 | 0.0% | 19.0% | 81.0% | 0.0% |
| Action 2 | 45 | 0.0% | 8.9% | 88.9% | 0.0% |
| Action 3 | 32 | 0.0% | 9.4% | 87.5% | 0.0% |
| Action 4 | 24 | 4.2% | 8.3% | 87.5% | 0.0% |
| Action 5 | 14 | 0.0% | 0.0% | 92.9% | 0.0% |
| Action 6 | 7 | 14.3% | 14.3% | 71.4% | 0.0% |
| Action 7 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 9 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 10 | 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%
7.4%
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.