Examiner Drew J Mitchum
Examiner Drew J Mitchum appears to be very difficult relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 0.0% and their rejection profile is dominated by ยง103.
Difficulty vs AU
Very Hard
Difficulty vs Group
Very Hard
Difficulty vs TC
Very Hard
Difficulty vs USPTO
Very Hard
Average OA / Grant
N/A
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Examiner Details
- Observed Examiner Years
- 2 years (2025-2026)
- Phone
- (571) 272-5610
- Predicted Supervisor
- Edward F Landrum
- Supervisor Phone
- (571) 272-5567
- Tech Center
- 3700 - Mechanical Engineering, Manufacturing and Products
- Group
- 3760 - Refrigeration, Vaporization, Ventilation, and Combustion
Metrics
- Applications Evaluated
- 19
- Granted Applications
- 0
- Non-Granted Applications
- 19
- Avg OA / Grant
- N/A
- Last OA Observed
- June 2026 (1 months ago)
- Art Units Seen
- 3761
- Work Groups Seen
Context Comparison
| Scope | Examiners | Lifetime Grant Ratio | Avg OA / Grant |
|---|---|---|---|
| This Examiner | 1 | 0.0% | N/A |
| Art Unit | 83 | 38.8% | 2.17 |
| Group | 380 | 49.8% | 2.11 |
| Tech Center | 2,662 | 48.9% | 2.01 |
| USPTO | 16,347 | 53.5% | 1.98 |
Grant Timeline
Shaded region marks the last two observed years, where grant outcomes may lag due to recency.
| Year | Applications | Granted | Grant Rate |
|---|---|---|---|
| No observed data before 2025; examiner may not yet have been active in the available dataset. | |||
| 2025 | 1 | 0 | 0.0% |
| 2026 | 18 | 0 | 0.0% |
0 family-cache-validated grants; 0 OA-only grant signals.
Rejection Timeline
| OA # | Office Actions | § 101 Percentage | § 102 Percentage | § 103 Percentage | § 112 Percentage |
|---|---|---|---|---|---|
| 1 | 19 | 0.0% | 15.8% | 73.7% | 10.5% |
| 2 | 7 | 0.0% | 14.3% | 85.7% | 0.0% |