Examiner Corbyn D Mellinger
Grant ratio: 15.2% (37th percentile in Art Unit 2899 among examiners with at least 20 applications). Average office actions per grant: 2.00. Most common rejection type: §103.
Recently active
Last office action in data: October 2026
Examiner record
- Examiner ID
- 99525
- Primary art unit
- 2899
- Work group
- 2890
- Technology center
- 2800
- Applications
- 66
- Granted applications
- 10
- Examiner phone
- (703) 756-5683
- Supervisor
- Zandra Smith
- Supervisor phone
- (571) 272-2429
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 | 38 | 43.6% | 1.66 |
| Group | 297 | 52.1% | 1.76 |
| Tech Center | 2,435 | 61.3% | 1.69 |
| USPTO | 16,620 | 51.8% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 27 | 40.9% |
| 2 OAs | 26 | 39.4% |
| 3 OAs | 9 | 13.6% |
| 4 OAs | 4 | 6.1% |
| 5+ OAs | 0 | 0.0% |
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 |
|---|---|---|---|
| 2024 | 2 | 1 | 50.0% |
| 2025 | 38 | 9 | 23.7% |
| 2026 | 26 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 66 | 0.0% | 7.6% | 83.3% | 7.6% |
| Action 2 | 39 | 0.0% | 12.8% | 71.8% | 15.4% |
| Action 3 | 13 | 0.0% | 7.7% | 76.9% | 23.1% |
| Action 4 | 4 | 0.0% | 25.0% | 75.0% | 0.0% |
Section 101 rejections
Last 3 years: 2023-10-23–2026-10-23. All years includes every dated office action in the data.
By year
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 Oct. 30, 2026.