Examiner Katherine A Holbrow
Examiner Katherine A Holbrow appears to be more difficult than most of their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 85.5%, they average 1.32 office actions per granted patent, and their rejection profile leans toward §112 and elevated §112 usage.
Difficulty vs AU
Very Hard
Difficulty vs Group
Very Hard
Difficulty vs TC
Very Hard
Difficulty vs USPTO
Very Easy
Average OA / Grant
1.32
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Examiner Details
- Observed Examiner Years
- 5 years (2021-2025)
- Tech Center
- 2900 - Designs
- Group
- 2900-WG - 2900-WG
Metrics
- Applications Evaluated
- 69
- Granted Applications
- 59
- Non-Granted Applications
- 10
- Avg OA / Grant
- 1.32
- Last OA Observed
- November 2025 (4 months ago)
- Work Groups Seen
Context Comparison
| Scope | Examiners | Lifetime Grant Ratio | Avg OA / Grant |
|---|---|---|---|
| This Examiner | 1 | 85.5% | 1.32 |
| Art Unit | 16 | 92.0% | 1.22 |
| Group | 461 | 95.1% | 1.19 |
| Tech Center | 486 | 94.9% | 1.20 |
| USPTO | 16,116 | 54.8% | 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 2021; examiner may not yet have been active in the available dataset. | |||
| 2021 | 1 | 1 | 100.0% |
| 2022 | 11 | 9 | 81.8% |
| 2023 | 38 | 33 | 86.8% |
| 2024 | 17 | 15 | 88.2% |
| 2025 | 2 | 1 | 50.0% |
| No observed data after 2025; examiner may have gone inactive or moved out of examining work. | |||
59 family-cache-validated grants; 0 OA-only grant signals.
Rejection Timeline
| OA # | Office Actions | § 101 Percentage | § 102 Percentage | § 103 Percentage | § 112 Percentage |
|---|---|---|---|---|---|
| 1 | 65 | 0.0% | 20.0% | 9.2% | 38.5% |
| 2 | 19 | 0.0% | 31.6% | 31.6% | 31.6% |
| 3 | 2 | 0.0% | 50.0% | 0.0% | 50.0% |