Examiner Duc Ho
Grant ratio: 87.9% (94th percentile in Art Unit 2465 among examiners with at least 20 applications). Average office actions per grant: 1.44. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 76858
- Primary art unit
- 2465
- Work group
- 2460
- Technology center
- 2400
- Applications
- 1,227
- Granted applications
- 1,078
- Examiner phone
- (571) 272-3147
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 35 | 47.6% | 1.96 |
| Group | 225 | 60.1% | 2.07 |
| 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 | 910 | 74.2% |
| 2 OAs | 212 | 17.3% |
| 3 OAs | 59 | 4.8% |
| 4 OAs | 28 | 2.3% |
| 5+ OAs | 18 | 1.5% |
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 | 67 | 84.8% |
| 2009 | 62 | 53 | 85.5% |
| 2010 | 67 | 62 | 92.5% |
| 2011 | 61 | 55 | 90.2% |
| 2012 | 39 | 38 | 97.4% |
| 2013 | 46 | 45 | 97.8% |
| 2014 | 55 | 55 | 100.0% |
| 2015 | 76 | 69 | 90.8% |
| 2016 | 71 | 66 | 93.0% |
| 2017 | 64 | 55 | 85.9% |
| 2018 | 62 | 60 | 96.8% |
| 2019 | 74 | 69 | 93.2% |
| 2020 | 66 | 64 | 97.0% |
| 2021 | 74 | 74 | 100.0% |
| 2022 | 79 | 76 | 96.2% |
| 2023 | 70 | 66 | 94.3% |
| 2024 | 75 | 71 | 94.7% |
| 2025 | 68 | 33 | 48.5% |
| 2026 | 39 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,227 | 6.4% | 4.9% | 28.9% | 31.2% |
| Action 2 | 317 | 5.4% | 3.8% | 30.9% | 32.8% |
| Action 3 | 105 | 1.9% | 6.7% | 55.2% | 13.3% |
| Action 4 | 46 | 0.0% | 4.3% | 67.4% | 17.4% |
| Action 5 | 18 | 5.6% | 16.7% | 61.1% | 0.0% |
| Action 6 | 9 | 0.0% | 11.1% | 66.7% | 0.0% |
| Action 7 | 6 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 9 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 10 | 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
7.1%
4.6%
5.1%
2.9%
7.3%
4.6%
2014: Alice
5.6%
6.0%
2.2%
12.4%
14.5%
2019: PEG
5.7%
3.8%
3.3%
3.3%
6.4%
2024: AI examples
7.1%
2025: August memo
1.3%
2.3%
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.