Examiner Sanh Phu
Grant ratio: 89.5% (88th percentile in Art Unit 2647 among examiners with at least 20 applications). Average office actions per grant: 1.60. Most common rejection type: §103.
Appears inactive
Last office action in data: December 2018
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 14 | 59.0% | 1.88 |
| Group | 226 | 57.7% | 2.06 |
| Tech Center | 1,754 | 57.4% | 1.88 |
| 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 | 418 | 60.0% |
| 2 OAs | 193 | 27.7% |
| 3 OAs | 62 | 8.9% |
| 4 OAs | 13 | 1.9% |
| 5+ OAs | 11 | 1.6% |
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 | 53 | 46 | 86.8% |
| 2009 | 80 | 67 | 83.8% |
| 2010 | 67 | 54 | 80.6% |
| 2011 | 73 | 65 | 89.0% |
| 2012 | 71 | 66 | 93.0% |
| 2013 | 59 | 52 | 88.1% |
| 2014 | 67 | 60 | 89.6% |
| 2015 | 43 | 39 | 90.7% |
| 2016 | 59 | 55 | 93.2% |
| 2017 | 56 | 53 | 94.6% |
| 2018 | 66 | 64 | 97.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 697 | 2.0% | 37.3% | 43.8% | 3.3% |
| Action 2 | 279 | 0.7% | 29.0% | 52.3% | 5.7% |
| Action 3 | 86 | 0.0% | 20.9% | 64.0% | 7.0% |
| Action 4 | 24 | 0.0% | 12.5% | 62.5% | 4.2% |
| Action 5 | 11 | 0.0% | 9.1% | 63.6% | 0.0% |
| Action 6 | 5 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 2 | 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
5.3%
0.8%
1.8%
0.0%
1.7%
1.7%
2014: Alice
1.9%
0.0%
1.1%
0.0%
1.3%
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 Aug. 27, 2026.