Examiner Congvan Tran
Grant ratio: 83.6% (71st percentile in Art Unit 2647 among examiners with at least 20 applications). Average office actions per grant: 1.71. Most common rejection type: §102.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 73926
- Primary art unit
- 2647
- Work group
- 2640
- Technology center
- 2600
- Applications
- 1,211
- Granted applications
- 1,013
- Examiner phone
- (571) 272-7871
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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 | 5 | 0.4% |
| 1 OA | 715 | 59.0% |
| 2 OAs | 278 | 23.0% |
| 3 OAs | 128 | 10.6% |
| 4 OAs | 43 | 3.6% |
| 5+ OAs | 42 | 3.5% |
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 | 63 | 46 | 73.0% |
| 2009 | 71 | 58 | 81.7% |
| 2010 | 70 | 59 | 84.3% |
| 2011 | 82 | 72 | 87.8% |
| 2012 | 66 | 61 | 92.4% |
| 2013 | 70 | 58 | 82.9% |
| 2014 | 63 | 58 | 92.1% |
| 2015 | 50 | 46 | 92.0% |
| 2016 | 92 | 81 | 88.0% |
| 2017 | 74 | 68 | 91.9% |
| 2018 | 54 | 50 | 92.6% |
| 2019 | 53 | 53 | 100.0% |
| 2020 | 65 | 61 | 93.8% |
| 2021 | 61 | 57 | 93.4% |
| 2022 | 53 | 51 | 96.2% |
| 2023 | 61 | 55 | 90.2% |
| 2024 | 59 | 54 | 91.5% |
| 2025 | 54 | 25 | 46.3% |
| 2026 | 50 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,206 | 3.1% | 59.5% | 31.3% | 0.9% |
| Action 2 | 491 | 1.0% | 57.0% | 33.2% | 3.3% |
| Action 3 | 213 | 0.9% | 54.0% | 38.0% | 3.3% |
| Action 4 | 85 | 1.2% | 49.4% | 42.4% | 4.7% |
| Action 5 | 42 | 0.0% | 59.5% | 38.1% | 0.0% |
| Action 6 | 19 | 0.0% | 47.4% | 52.6% | 0.0% |
| Action 7 | 12 | 0.0% | 33.3% | 50.0% | 16.7% |
| Action 8 | 10 | 0.0% | 60.0% | 40.0% | 0.0% |
| Action 9 | 3 | 0.0% | 33.3% | 66.7% | 0.0% |
| Action 10 | 2 | 0.0% | 50.0% | 50.0% | 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
4.2%
2.8%
1.5%
2.3%
1.9%
0.8%
2014: Alice
2.8%
5.2%
0.7%
2.4%
0.0%
2019: PEG
4.3%
1.0%
3.1%
4.1%
0.0%
2024: AI examples
1.0%
2025: August memo
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.