Examiner Jack K Barnett
Grant ratio: 18.6% (10th percentile in Art Unit 2111 among examiners with at least 20 applications). Average office actions per grant: 1.38. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 100125
- Primary art unit
- 2111
- Work group
- 2110
- Technology center
- 2100
- Applications
- 43
- Granted applications
- 8
- Examiner phone
- (571) 270-0431
- Supervisor
- Mark Featherstone
- Supervisor phone
- (571) 270-3750
Save this analysis
Download this examiner report.
Log in / Sign Up to exportPeer comparisons
| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 16 | 59.9% | 1.82 |
| Group | 214 | 64.2% | 1.69 |
| Tech Center | 1,781 | 52.8% | 2.19 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 2 | 4.7% |
| 1 OA | 21 | 48.8% |
| 2 OAs | 11 | 25.6% |
| 3 OAs | 5 | 11.6% |
| 4 OAs | 3 | 7.0% |
| 5+ OAs | 1 | 2.3% |
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 |
|---|---|---|---|
| 2025 | 17 | 8 | 47.1% |
| 2026 | 26 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 41 | 7.3% | 4.9% | 75.6% | 2.4% |
| Action 2 | 20 | 5.0% | 0.0% | 85.0% | 5.0% |
| Action 3 | 9 | 0.0% | 0.0% | 88.9% | 11.1% |
| Action 4 | 4 | 0.0% | 0.0% | 75.0% | 0.0% |
| Action 5 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 1 | 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
2024: AI examples
0.0%
2025: August memo
9.3%
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.