Examiner Robert J Kallal
Grant ratio: 29.7% (95th percentile in Art Unit 1685 among examiners with at least 20 applications). Average office actions per grant: 2.54. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 97539
- Primary art unit
- 1685
- Work group
- 1680
- Technology center
- 1600
- Applications
- 138
- Granted applications
- 41
- Examiner phone
- (571) 272-6252
- Supervisor
- Olivia M. Wise
- Supervisor phone
- (571) 272-2249
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 16 | 6.8% | 2.77 |
| Group | 68 | 6.4% | 2.37 |
| Tech Center | 1,373 | 38.0% | 2.02 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 11 | 8.0% |
| 1 OA | 45 | 32.6% |
| 2 OAs | 28 | 20.3% |
| 3 OAs | 21 | 15.2% |
| 4 OAs | 17 | 12.3% |
| 5+ OAs | 16 | 11.6% |
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 |
|---|---|---|---|
| 2022 | 2 | 1 | 50.0% |
| 2023 | 29 | 14 | 48.3% |
| 2024 | 30 | 20 | 66.7% |
| 2025 | 33 | 6 | 18.2% |
| 2026 | 44 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 127 | 18.1% | 3.9% | 63.0% | 1.6% |
| Action 2 | 82 | 25.6% | 4.9% | 58.5% | 3.7% |
| Action 3 | 54 | 31.5% | 1.9% | 48.1% | 11.1% |
| Action 4 | 33 | 33.3% | 3.0% | 48.5% | 9.1% |
| Action 5 | 16 | 56.3% | 0.0% | 18.8% | 6.3% |
| Action 6 | 7 | 57.1% | 0.0% | 14.3% | 14.3% |
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%
24.2%
2024: AI examples
18.9%
2025: August memo
27.5%
46.4%
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.