Examiner Huan Hoang
Grant ratio: 88.8% (62nd percentile in Art Unit 2827 among examiners with at least 20 applications). Average office actions per grant: 1.37. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 71566
- Primary art unit
- 2827
- Work group
- 2820
- Technology center
- 2800
- Applications
- 1,246
- Granted applications
- 1,107
- Examiner phone
- (571) 272-1779
- Supervisor
- Amir Zarabian
- Supervisor phone
- (571) 272-1852
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 | 26 | 76.2% | 1.39 |
| Group | 207 | 71.2% | 1.64 |
| Tech Center | 2,413 | 62.4% | 1.69 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 1 | 0.1% |
| 1 OA | 898 | 72.1% |
| 2 OAs | 271 | 21.7% |
| 3 OAs | 56 | 4.5% |
| 4 OAs | 19 | 1.5% |
| 5+ OAs | 1 | 0.1% |
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 | 79 | 72 | 91.1% |
| 2009 | 58 | 52 | 89.7% |
| 2010 | 70 | 67 | 95.7% |
| 2011 | 90 | 84 | 93.3% |
| 2012 | 70 | 61 | 87.1% |
| 2013 | 91 | 84 | 92.3% |
| 2014 | 67 | 55 | 82.1% |
| 2015 | 74 | 67 | 90.5% |
| 2016 | 68 | 65 | 95.6% |
| 2017 | 59 | 54 | 91.5% |
| 2018 | 61 | 59 | 96.7% |
| 2019 | 64 | 60 | 93.8% |
| 2020 | 66 | 62 | 93.9% |
| 2021 | 61 | 60 | 98.4% |
| 2022 | 58 | 56 | 96.6% |
| 2023 | 63 | 62 | 98.4% |
| 2024 | 57 | 56 | 98.2% |
| 2025 | 51 | 31 | 60.8% |
| 2026 | 39 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,245 | 1.0% | 28.2% | 41.8% | 9.3% |
| Action 2 | 347 | 3.5% | 24.8% | 39.8% | 8.6% |
| Action 3 | 76 | 7.9% | 26.3% | 50.0% | 1.3% |
| Action 4 | 20 | 15.0% | 20.0% | 40.0% | 5.0% |
| Action 5 | 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
3.6%
0.0%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
1.0%
0.0%
13.3%
16.3%
2019: PEG
0.0%
0.0%
0.0%
0.0%
0.0%
2024: AI examples
0.0%
2025: August memo
0.0%
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.