Examiner Daniel J. Colilla
Grant ratio: 61.5% (83rd percentile in Art Unit 3649 among examiners with at least 20 applications). Average office actions per grant: 1.62. Most common rejection type: §103.
Recently active
Last office action in data: October 2026
Examiner record
- Examiner ID
- 73019
- Primary art unit
- 3649
- Work group
- 3640
- Technology center
- 3600
- Applications
- 1,279
- Granted applications
- 787
- Examiner phone
- (571) 272-2157
- Supervisor
- Judy Nguyen
- Supervisor phone
- (571) 272-2258
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 15 | 50.5% | 1.97 |
| Group | 280 | 52.3% | 1.75 |
| Tech Center | 2,394 | 45.5% | 2.12 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 16 | 1.3% |
| 1 OA | 786 | 61.5% |
| 2 OAs | 319 | 24.9% |
| 3 OAs | 91 | 7.1% |
| 4 OAs | 50 | 3.9% |
| 5+ OAs | 17 | 1.3% |
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 | 56 | 41 | 73.2% |
| 2009 | 65 | 40 | 61.5% |
| 2010 | 72 | 53 | 73.6% |
| 2011 | 67 | 45 | 67.2% |
| 2012 | 59 | 35 | 59.3% |
| 2013 | 58 | 48 | 82.8% |
| 2014 | 64 | 51 | 79.7% |
| 2015 | 48 | 37 | 77.1% |
| 2016 | 66 | 53 | 80.3% |
| 2017 | 85 | 53 | 62.4% |
| 2018 | 77 | 32 | 41.6% |
| 2019 | 74 | 41 | 55.4% |
| 2020 | 62 | 32 | 51.6% |
| 2021 | 77 | 46 | 59.7% |
| 2022 | 54 | 38 | 70.4% |
| 2023 | 52 | 36 | 69.2% |
| 2024 | 79 | 64 | 81.0% |
| 2025 | 86 | 42 | 48.8% |
| 2026 | 78 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,263 | 0.5% | 8.1% | 57.5% | 30.0% |
| Action 2 | 477 | 0.6% | 7.1% | 72.5% | 15.1% |
| Action 3 | 158 | 0.6% | 3.8% | 80.4% | 13.3% |
| Action 4 | 67 | 0.0% | 1.5% | 85.1% | 10.4% |
| Action 5 | 17 | 0.0% | 0.0% | 76.5% | 23.5% |
| Action 6 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 1 | 0.0% | 0.0% | 0.0% | 100.0% |
Section 101 rejections
Last 3 years: 2023-10-23–2026-10-23. All years includes every dated office action in the data.
By year
0.0%
0.0%
0.0%
0.9%
1.0%
2.8%
2014: Alice
0.0%
0.0%
0.0%
0.0%
1.0%
2019: PEG
0.0%
2.2%
0.0%
0.0%
1.4%
2024: AI examples
0.9%
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 Oct. 30, 2026.