Examiner “Krista” Kieu-Oanh Bui
Grant ratio: 82.6% (98th percentile in Art Unit 2425 among examiners with at least 20 applications). Average office actions per grant: 2.13. Most common rejection type: §103.
Appears inactive
Last office action in data: October 2018
Examiner record
Save this analysis
Download this examiner report.
Log in / Sign Up to exportPeer comparisons
| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 23 | 54.3% | 2.69 |
| Group | 130 | 52.7% | 2.61 |
| Tech Center | 1,754 | 58.4% | 2.14 |
| 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 | 180 | 45.1% |
| 2 OAs | 94 | 23.6% |
| 3 OAs | 73 | 18.3% |
| 4 OAs | 29 | 7.3% |
| 5+ OAs | 23 | 5.8% |
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 |
|---|---|---|---|
| 2009 | 1 | 0 | 0.0% |
| 2010 | 14 | 9 | 64.3% |
| 2011 | 62 | 44 | 71.0% |
| 2012 | 57 | 47 | 82.5% |
| 2013 | 38 | 37 | 97.4% |
| 2014 | 40 | 34 | 85.0% |
| 2015 | 36 | 32 | 88.9% |
| 2016 | 44 | 37 | 84.1% |
| 2017 | 52 | 43 | 82.7% |
| 2018 | 24 | 21 | 87.5% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 399 | 2.0% | 52.6% | 24.1% | 0.3% |
| Action 2 | 219 | 0.9% | 29.2% | 68.9% | 0.5% |
| Action 3 | 125 | 0.0% | 11.2% | 88.0% | 0.8% |
| Action 4 | 52 | 0.0% | 5.8% | 94.2% | 0.0% |
| Action 5 | 23 | 0.0% | 13.0% | 87.0% | 0.0% |
| Action 6 | 11 | 0.0% | 9.1% | 90.9% | 0.0% |
| Action 7 | 5 | 0.0% | 20.0% | 80.0% | 0.0% |
| Action 8 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 9 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 10 | 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
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
2014: Alice
2.9%
1.8%
4.5%
2.8%
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.