Examiner Kenneth Lo
Grant ratio: 16.7% (3rd percentile in Art Unit 2136 among examiners with at least 20 applications). Average office actions per grant: 4.14. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 73592
- Primary art unit
- 2136
- Work group
- 2130
- Technology center
- 2100
- Applications
- 42
- Granted applications
- 7
- Examiner phone
- (571) 272-9774
- Supervisor
- Cordelia Zecher
- Supervisor phone
- (571) 272-7771
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 17 | 69.9% | 2.38 |
| Group | 138 | 68.4% | 2.08 |
| Tech Center | 1,807 | 51.8% | 2.19 |
| USPTO | 16,572 | 52.1% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 14 | 33.3% |
| 1 OA | 7 | 16.7% |
| 2 OAs | 5 | 11.9% |
| 3 OAs | 3 | 7.1% |
| 4 OAs | 7 | 16.7% |
| 5+ OAs | 6 | 14.3% |
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 |
|---|---|---|---|
| 2011 | 5 | 0 | 0.0% |
| 2012 | 8 | 0 | 0.0% |
| 2013 | 2 | 0 | 0.0% |
| 2014 | 7 | 0 | 0.0% |
| 2015 | 2 | 1 | 50.0% |
| 2016 | 2 | 0 | 0.0% |
| 2017 | 1 | 0 | 0.0% |
| 2020 | 6 | 6 | 100.0% |
| 2025 | 3 | 0 | 0.0% |
| 2026 | 6 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 28 | 0.0% | 21.4% | 75.0% | 3.6% |
| Action 2 | 21 | 0.0% | 28.6% | 61.9% | 0.0% |
| Action 3 | 16 | 0.0% | 0.0% | 81.3% | 12.5% |
| Action 4 | 13 | 0.0% | 23.1% | 69.2% | 0.0% |
| Action 5 | 6 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 3 | 0.0% | 0.0% | 66.7% | 33.3% |
Section 101 rejections
Last 3 years: 2023-10-02–2026-10-02. All years includes every dated office action in the data.
By year
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
0.0%
0.0%
0.0%
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 Oct. 9, 2026.