Examiner Ding Y Tan
Grant ratio: 62.1% (33rd percentile in Art Unit 3632 among examiners with at least 20 applications). Average office actions per grant: 1.64. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 95902
- Primary art unit
- 3632
- Work group
- 3630
- Technology center
- 3600
- Applications
- 282
- Granted applications
- 175
- Examiner phone
- (303) 297-4271
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 25 | 57.5% | 1.65 |
| Group | 182 | 51.6% | 1.79 |
| Tech Center | 2,381 | 46.2% | 2.12 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 2 | 0.7% |
| 1 OA | 146 | 51.8% |
| 2 OAs | 96 | 34.0% |
| 3 OAs | 27 | 9.6% |
| 4 OAs | 9 | 3.2% |
| 5+ OAs | 2 | 0.7% |
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 |
|---|---|---|---|
| 2020 | 3 | 1 | 33.3% |
| 2021 | 37 | 25 | 67.6% |
| 2022 | 46 | 35 | 76.1% |
| 2023 | 55 | 39 | 70.9% |
| 2024 | 60 | 47 | 78.3% |
| 2025 | 46 | 28 | 60.9% |
| 2026 | 35 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 280 | 0.0% | 8.2% | 86.8% | 3.9% |
| Action 2 | 134 | 0.7% | 11.2% | 71.6% | 14.9% |
| Action 3 | 38 | 0.0% | 7.9% | 76.3% | 15.8% |
| Action 4 | 11 | 0.0% | 9.1% | 72.7% | 18.2% |
| Action 5 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 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
0.0%
0.0%
1.0%
0.0%
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 Aug. 27, 2026.