Examiner Alan Chen
Grant ratio: 83.9% (81st percentile in Art Unit 2129 among examiners with at least 20 applications). Average office actions per grant: 1.33. Most common rejection type: §102.
Appears inactive
Last office action in data: February 2017
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 35 | 54.2% | 1.89 |
| Group | 333 | 45.2% | 1.98 |
| 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 | 213 | 76.3% |
| 2 OAs | 50 | 17.9% |
| 3 OAs | 8 | 2.9% |
| 4 OAs | 5 | 1.8% |
| 5+ OAs | 3 | 1.1% |
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 | 7 | 4 | 57.1% |
| 2009 | 43 | 36 | 83.7% |
| 2010 | 29 | 22 | 75.9% |
| 2011 | 29 | 25 | 86.2% |
| 2012 | 34 | 31 | 91.2% |
| 2013 | 36 | 32 | 88.9% |
| 2014 | 36 | 31 | 86.1% |
| 2015 | 40 | 34 | 85.0% |
| 2016 | 24 | 18 | 75.0% |
| 2017 | 1 | 1 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 279 | 6.1% | 57.3% | 28.7% | 1.8% |
| Action 2 | 66 | 13.6% | 34.8% | 43.9% | 3.0% |
| Action 3 | 16 | 6.3% | 43.8% | 50.0% | 0.0% |
| Action 4 | 8 | 12.5% | 12.5% | 62.5% | 0.0% |
| Action 5 | 3 | 0.0% | 33.3% | 33.3% | 33.3% |
| Action 6 | 3 | 0.0% | 0.0% | 66.7% | 33.3% |
Section 101 rejections
Last 3 years: 2023-08-28–2026-08-28. All years includes every dated office action in the data.
By year
9.1%
17.5%
14.3%
0.0%
6.1%
4.4%
2014: Alice
6.5%
0.0%
10.7%
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.