Examiner Xuemei Zheng
Grant ratio: 76.2% (68th percentile in Art Unit 2693 among examiners with at least 20 applications). Average office actions per grant: 1.76. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 90794
- Primary art unit
- 2693
- Work group
- 2690
- Technology center
- 2600
- Applications
- 738
- Granted applications
- 562
- Examiner phone
- (571) 272-1434
- Supervisor
- Benjamin Lee
- Supervisor phone
- (571) 272-2963
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 15 | 64.8% | 2.05 |
| Group | 96 | 51.2% | 2.11 |
| Tech Center | 1,754 | 57.4% | 1.88 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 13 | 1.8% |
| 1 OA | 391 | 53.0% |
| 2 OAs | 209 | 28.3% |
| 3 OAs | 72 | 9.8% |
| 4 OAs | 34 | 4.6% |
| 5+ OAs | 19 | 2.6% |
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 |
|---|---|---|---|
| 2014 | 30 | 15 | 50.0% |
| 2015 | 44 | 24 | 54.5% |
| 2016 | 41 | 31 | 75.6% |
| 2017 | 62 | 49 | 79.0% |
| 2018 | 53 | 43 | 81.1% |
| 2019 | 72 | 61 | 84.7% |
| 2020 | 74 | 65 | 87.8% |
| 2021 | 70 | 64 | 91.4% |
| 2022 | 55 | 52 | 94.5% |
| 2023 | 75 | 68 | 90.7% |
| 2024 | 63 | 61 | 96.8% |
| 2025 | 58 | 29 | 50.0% |
| 2026 | 41 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 725 | 0.6% | 11.0% | 61.0% | 21.9% |
| Action 2 | 334 | 1.2% | 6.3% | 53.9% | 36.2% |
| Action 3 | 125 | 0.0% | 7.2% | 71.2% | 21.6% |
| Action 4 | 53 | 0.0% | 3.8% | 73.6% | 22.6% |
| Action 5 | 19 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 10 | 0.0% | 10.0% | 70.0% | 20.0% |
| Action 7 | 6 | 0.0% | 0.0% | 66.7% | 33.3% |
| Action 8 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 9 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 10 | 2 | 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%
0.0%
2014: Alice
0.0%
1.0%
0.9%
1.7%
0.0%
2019: PEG
0.0%
0.9%
0.0%
2.5%
0.0%
2024: AI examples
1.1%
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.