Examiner Crystal L. Hammond
Grant ratio: 85.4% (76th percentile in Art Unit 2844 among examiners with at least 20 applications). Average office actions per grant: 1.59. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 83194
- Primary art unit
- 2844
- Work group
- 2840
- Technology center
- 2800
- Applications
- 950
- Granted applications
- 811
- Examiner phone
- (571) 270-1682
- Supervisor
- Dimary Lopez
- Supervisor phone
- (571) 270-7893
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 38 | 71.5% | 1.65 |
| Group | 231 | 68.9% | 1.60 |
| 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 | 0 | 0.0% |
| 1 OA | 603 | 63.3% |
| 2 OAs | 221 | 23.2% |
| 3 OAs | 68 | 7.1% |
| 4 OAs | 37 | 3.9% |
| 5+ OAs | 23 | 2.4% |
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 | 35 | 26 | 74.3% |
| 2009 | 43 | 33 | 76.7% |
| 2010 | 59 | 48 | 81.4% |
| 2011 | 56 | 44 | 78.6% |
| 2012 | 108 | 104 | 96.3% |
| 2013 | 62 | 56 | 90.3% |
| 2014 | 45 | 40 | 88.9% |
| 2015 | 34 | 32 | 94.1% |
| 2016 | 93 | 79 | 84.9% |
| 2017 | 39 | 36 | 92.3% |
| 2018 | 76 | 68 | 89.5% |
| 2019 | 70 | 67 | 95.7% |
| 2020 | 69 | 63 | 91.3% |
| 2021 | 45 | 41 | 91.1% |
| 2022 | 27 | 23 | 85.2% |
| 2023 | 20 | 16 | 80.0% |
| 2024 | 18 | 16 | 88.9% |
| 2025 | 40 | 19 | 47.5% |
| 2026 | 11 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 952 | 2.1% | 48.9% | 40.7% | 0.4% |
| Action 2 | 349 | 0.6% | 32.4% | 65.0% | 0.0% |
| Action 3 | 128 | 0.0% | 23.4% | 73.4% | 1.6% |
| Action 4 | 60 | 0.0% | 25.0% | 75.0% | 0.0% |
| Action 5 | 23 | 0.0% | 17.4% | 82.6% | 0.0% |
| Action 6 | 10 | 0.0% | 20.0% | 80.0% | 0.0% |
| Action 7 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 8 | 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
0.0%
0.0%
0.0%
0.7%
2.1%
0.0%
2014: Alice
0.0%
0.0%
1.4%
2.7%
4.5%
2019: PEG
5.0%
2.4%
0.0%
0.0%
6.7%
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.