Examiner David Ton
Grant ratio: 93.4% (98th percentile in Art Unit 2117 among examiners with at least 20 applications). Average office actions per grant: 1.24. Most common rejection type: §103.
Appears inactive
Last office action in data: December 2016
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 34 | 63.3% | 1.87 |
| Group | 214 | 64.2% | 1.69 |
| Tech Center | 1,781 | 52.8% | 2.19 |
| 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 | 218 | 84.5% |
| 2 OAs | 28 | 10.9% |
| 3 OAs | 7 | 2.7% |
| 4 OAs | 4 | 1.6% |
| 5+ OAs | 1 | 0.4% |
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 | 25 | 23 | 92.0% |
| 2009 | 32 | 26 | 81.3% |
| 2010 | 39 | 37 | 94.9% |
| 2011 | 21 | 21 | 100.0% |
| 2012 | 25 | 22 | 88.0% |
| 2013 | 33 | 32 | 97.0% |
| 2014 | 21 | 21 | 100.0% |
| 2015 | 30 | 30 | 100.0% |
| 2016 | 32 | 29 | 90.6% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 258 | 12.8% | 7.8% | 48.1% | 10.5% |
| Action 2 | 40 | 7.5% | 2.5% | 70.0% | 15.0% |
| Action 3 | 12 | 0.0% | 8.3% | 75.0% | 0.0% |
| Action 4 | 5 | 0.0% | 0.0% | 40.0% | 20.0% |
| Action 5 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 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
3.4%
15.0%
2.2%
3.6%
6.3%
23.1%
2014: Alice
14.3%
15.8%
16.2%
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.