Examiner David E Martinez
Grant ratio: 83.3% (78th percentile in Art Unit 2181 among examiners with at least 20 applications). Average office actions per grant: 1.35. Most common rejection type: §103.
Recently active
Last office action in data: October 2026
Examiner record
- Examiner ID
- 79869
- Primary art unit
- 2181
- Work group
- 2180
- Technology center
- 2100
- Applications
- 676
- Granted applications
- 563
- Examiner phone
- (571) 272-4152
- Supervisor
- Daniel Cahn
- Supervisor phone
- (571) 270-5616
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 17 | 68.5% | 1.93 |
| Group | 184 | 50.6% | 1.89 |
| Tech Center | 1,807 | 51.8% | 2.19 |
| USPTO | 16,572 | 52.1% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 510 | 74.9% |
| 2 OAs | 125 | 18.4% |
| 3 OAs | 31 | 4.6% |
| 4 OAs | 9 | 1.3% |
| 5+ OAs | 6 | 0.9% |
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 | 23 | 13 | 56.5% |
| 2009 | 42 | 32 | 76.2% |
| 2010 | 30 | 22 | 73.3% |
| 2011 | 34 | 26 | 76.5% |
| 2012 | 35 | 29 | 82.9% |
| 2013 | 27 | 25 | 92.6% |
| 2014 | 44 | 38 | 86.4% |
| 2015 | 32 | 26 | 81.3% |
| 2016 | 38 | 36 | 94.7% |
| 2017 | 46 | 42 | 91.3% |
| 2018 | 45 | 42 | 93.3% |
| 2019 | 45 | 44 | 97.8% |
| 2020 | 40 | 37 | 92.5% |
| 2021 | 36 | 35 | 97.2% |
| 2022 | 38 | 38 | 100.0% |
| 2023 | 29 | 29 | 100.0% |
| 2024 | 38 | 36 | 94.7% |
| 2025 | 34 | 13 | 38.2% |
| 2026 | 20 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 681 | 1.9% | 27.5% | 45.2% | 18.6% |
| Action 2 | 171 | 2.9% | 27.5% | 63.2% | 4.1% |
| Action 3 | 46 | 2.2% | 13.0% | 78.3% | 6.5% |
| Action 4 | 15 | 0.0% | 6.7% | 86.7% | 6.7% |
| Action 5 | 6 | 0.0% | 0.0% | 83.3% | 16.7% |
| Action 6 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 3 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-02–2026-10-02. All years includes every dated office action in the data.
By year
4.4%
1.7%
2.2%
0.0%
0.0%
1.9%
2014: Alice
1.8%
2.0%
3.9%
3.1%
0.0%
2019: PEG
0.0%
0.0%
2.5%
2.4%
0.0%
2024: AI examples
11.4%
2025: August memo
2.2%
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 Oct. 9, 2026.