Examiner Cheung Lee
Grant ratio: 87.6% (81st percentile in Art Unit 2896 among examiners with at least 20 applications). Average office actions per grant: 1.42. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 81034
- Primary art unit
- 2896
- Work group
- 2890
- Technology center
- 2800
- Applications
- 1,157
- Granted applications
- 1,013
- Examiner phone
- (571) 272-5977
- Supervisor
- Davienne Monbleau
- Supervisor phone
- (571) 272-1945
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 13 | 79.6% | 1.86 |
| Group | 288 | 53.7% | 1.76 |
| Tech Center | 2,413 | 62.4% | 1.69 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 5 | 0.4% |
| 1 OA | 825 | 71.3% |
| 2 OAs | 236 | 20.4% |
| 3 OAs | 53 | 4.6% |
| 4 OAs | 24 | 2.1% |
| 5+ OAs | 14 | 1.2% |
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 |
|---|---|---|---|
| 2008 | 45 | 33 | 73.3% |
| 2009 | 44 | 36 | 81.8% |
| 2010 | 51 | 45 | 88.2% |
| 2011 | 71 | 58 | 81.7% |
| 2012 | 75 | 69 | 92.0% |
| 2013 | 79 | 69 | 87.3% |
| 2014 | 43 | 38 | 88.4% |
| 2015 | 67 | 62 | 92.5% |
| 2016 | 72 | 70 | 97.2% |
| 2017 | 66 | 60 | 90.9% |
| 2018 | 61 | 59 | 96.7% |
| 2019 | 68 | 65 | 95.6% |
| 2020 | 66 | 64 | 97.0% |
| 2021 | 59 | 57 | 96.6% |
| 2022 | 69 | 67 | 97.1% |
| 2023 | 65 | 64 | 98.5% |
| 2024 | 71 | 71 | 100.0% |
| 2025 | 46 | 26 | 56.5% |
| 2026 | 39 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,152 | 2.3% | 15.0% | 59.6% | 3.6% |
| Action 2 | 327 | 2.8% | 23.5% | 58.1% | 4.3% |
| Action 3 | 91 | 1.1% | 18.7% | 73.6% | 3.3% |
| Action 4 | 38 | 0.0% | 13.2% | 76.3% | 5.3% |
| Action 5 | 14 | 0.0% | 21.4% | 71.4% | 7.1% |
| Action 6 | 5 | 0.0% | 20.0% | 60.0% | 20.0% |
| Action 7 | 1 | 0.0% | 0.0% | 0.0% | 100.0% |
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%
0.0%
0.9%
3.5%
2014: Alice
2.9%
0.0%
1.0%
14.3%
16.7%
2019: PEG
0.0%
0.0%
1.4%
0.0%
1.3%
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.