Examiner David L Lewis
Grant ratio: 62.7% (75th percentile in Art Unit 2629 among examiners with at least 20 applications). Average office actions per grant: 1.17. Most common rejection type: §103.
Potentially inactive
Last office action in data: May 2026
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 43 | 42.7% | 2.03 |
| Group | 279 | 55.3% | 2.00 |
| 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 | 2 | 1.3% |
| 1 OA | 119 | 79.3% |
| 2 OAs | 22 | 14.7% |
| 3 OAs | 3 | 2.0% |
| 4 OAs | 2 | 1.3% |
| 5+ OAs | 2 | 1.3% |
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 |
|---|---|---|---|
| 2008 | 49 | 43 | 87.8% |
| 2009 | 49 | 39 | 79.6% |
| 2010 | 10 | 10 | 100.0% |
| 2011 | 14 | 0 | 0.0% |
| 2012 | 4 | 0 | 0.0% |
| 2013 | 1 | 0 | 0.0% |
| 2014 | 1 | 0 | 0.0% |
| 2015 | 4 | 0 | 0.0% |
| 2017 | 2 | 0 | 0.0% |
| 2025 | 13 | 2 | 15.4% |
| 2026 | 3 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 148 | 0.0% | 45.3% | 48.0% | 3.4% |
| Action 2 | 29 | 0.0% | 31.0% | 69.0% | 0.0% |
| Action 3 | 7 | 0.0% | 28.6% | 71.4% | 0.0% |
| Action 4 | 4 | 25.0% | 0.0% | 75.0% | 0.0% |
| Action 5 | 2 | 0.0% | 50.0% | 50.0% | 0.0% |
| Action 6 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 1 | 0.0% | 0.0% | 100.0% | 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%
0.0%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
0.0%
0.0%
0.0%
2025: August memo
0.0%
33.3%
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.