Examiner Kaipeen Yang
Grant ratio: 77.1% (94th percentile in Art Unit 1675 among examiners with at least 20 applications). Average office actions per grant: 1.67. Most common rejection type: §103.
Appears inactive
Last office action in data: September 2020
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 15 | 35.9% | 1.44 |
| Group | 84 | 29.7% | 1.91 |
| Tech Center | 1,373 | 38.0% | 2.02 |
| 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 | 215 | 57.5% |
| 2 OAs | 89 | 23.8% |
| 3 OAs | 42 | 11.2% |
| 4 OAs | 16 | 4.3% |
| 5+ OAs | 12 | 3.2% |
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 |
|---|---|---|---|
| 2010 | 1 | 1 | 100.0% |
| 2011 | 2 | 2 | 100.0% |
| 2012 | 25 | 21 | 84.0% |
| 2013 | 47 | 36 | 76.6% |
| 2014 | 34 | 24 | 70.6% |
| 2015 | 34 | 25 | 73.5% |
| 2016 | 36 | 23 | 63.9% |
| 2017 | 49 | 37 | 75.5% |
| 2018 | 55 | 46 | 83.6% |
| 2019 | 48 | 39 | 81.3% |
| 2020 | 18 | 15 | 83.3% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 374 | 0.5% | 23.0% | 37.4% | 11.0% |
| Action 2 | 159 | 2.5% | 17.6% | 43.4% | 22.0% |
| Action 3 | 70 | 2.9% | 11.4% | 51.4% | 18.6% |
| Action 4 | 28 | 3.6% | 21.4% | 50.0% | 7.1% |
| Action 5 | 12 | 8.3% | 33.3% | 25.0% | 16.7% |
| Action 6 | 4 | 0.0% | 50.0% | 50.0% | 0.0% |
| Action 7 | 2 | 0.0% | 0.0% | 0.0% | 100.0% |
| Action 8 | 1 | 0.0% | 100.0% | 0.0% | 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
0.0%
0.0%
0.0%
0.0%
2.6%
2014: Alice
5.9%
0.0%
1.3%
1.0%
1.1%
2019: PEG
1.2%
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.