Examiner David T Welch
Grant ratio: 22.2% (26th percentile in Art Unit 2613 among examiners with at least 20 applications). Average office actions per grant: 2.00.
Appears inactive
Last office action in data: August 2014
Examiner record
Save this analysis
Download this examiner report.
Log in / Sign Up to exportPeer comparisons
| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 30 | 47.5% | 1.81 |
| Group | 292 | 48.6% | 1.92 |
| Tech Center | 1,759 | 56.9% | 1.88 |
| USPTO | 16,572 | 52.1% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 7 | 25.9% |
| 2 OAs | 10 | 37.0% |
| 3 OAs | 4 | 14.8% |
| 4 OAs | 5 | 18.5% |
| 5+ OAs | 1 | 3.7% |
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 | 1 | 0 | 0.0% |
| 2013 | 17 | 5 | 29.4% |
| 2014 | 9 | 1 | 11.1% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 27 | 3.7% | 22.2% | 3.7% | 11.1% |
| Action 2 | 20 | 15.0% | 15.0% | 10.0% | 20.0% |
| Action 3 | 10 | 0.0% | 10.0% | 10.0% | 30.0% |
| Action 4 | 6 | 0.0% | 16.7% | 0.0% | 16.7% |
| Action 5 | 1 | 0.0% | 100.0% | 0.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-02–2026-10-02. All years includes every dated office action in the data.
By year
0.0%
10.3%
2014: Alice
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. 9, 2026.