Examiner Liam R Casey
Grant ratio: 16.7% (4th percentile in Art Unit 2864 among examiners with at least 20 applications). Average office actions per grant: 1.50. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 70709
- Primary art unit
- 2864
- Work group
- 2860
- Technology center
- 2800
- Applications
- 48
- Granted applications
- 8
- Examiner phone
- (571) 270-5977
- Supervisor
- Andrea Wellington
- Supervisor phone
- (571) 272-4483
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 13 | 65.9% | 1.93 |
| Group | 131 | 67.2% | 1.82 |
| 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 | 5 | 10.4% |
| 1 OA | 18 | 37.5% |
| 2 OAs | 12 | 25.0% |
| 3 OAs | 5 | 10.4% |
| 4 OAs | 4 | 8.3% |
| 5+ OAs | 4 | 8.3% |
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 |
|---|---|---|---|
| 2009 | 1 | 0 | 0.0% |
| 2011 | 5 | 0 | 0.0% |
| 2013 | 4 | 0 | 0.0% |
| 2014 | 3 | 0 | 0.0% |
| 2015 | 7 | 0 | 0.0% |
| 2021 | 4 | 0 | 0.0% |
| 2022 | 9 | 4 | 44.4% |
| 2023 | 1 | 0 | 0.0% |
| 2025 | 5 | 4 | 80.0% |
| 2026 | 9 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 43 | 9.3% | 7.0% | 69.8% | 11.6% |
| Action 2 | 25 | 4.0% | 8.0% | 76.0% | 12.0% |
| Action 3 | 13 | 7.7% | 15.4% | 61.5% | 7.7% |
| Action 4 | 8 | 0.0% | 12.5% | 87.5% | 0.0% |
| Action 5 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 3 | 66.7% | 0.0% | 33.3% | 0.0% |
| Action 7 | 2 | 100.0% | 0.0% | 0.0% | 0.0% |
| Action 8 | 1 | 100.0% | 0.0% | 0.0% | 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%
33.3%
0.0%
0.0%
0.0%
0.0%
2014: Alice
25.0%
0.0%
40.0%
12.5%
7.7%
0.0%
2025: August memo
16.7%
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.