Examiner Cedric Chan
Grant ratio: 39.8% (21st percentile in Art Unit 1797 among examiners with at least 20 applications). Average office actions per grant: 2.64. Most common rejection type: §103.
Appears inactive
Last office action in data: July 2012
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 41 | 48.0% | 1.93 |
| Group | 303 | 36.3% | 2.12 |
| Tech Center | 1,792 | 44.3% | 2.14 |
| USPTO | 16,475 | 52.7% | 1.98 |
Office actions per application
| Office actions | Applications | Share of applications |
|---|---|---|
| No OA observed | 0 | 0.0% |
| 1 OA | 39 | 39.8% |
| 2 OAs | 31 | 31.6% |
| 3 OAs | 10 | 10.2% |
| 4 OAs | 11 | 11.2% |
| 5+ OAs | 7 | 7.1% |
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 |
|---|---|---|---|
| 2007 | 2 | 2 | 100.0% |
| 2008 | 25 | 6 | 24.0% |
| 2009 | 29 | 11 | 37.9% |
| 2010 | 29 | 12 | 41.4% |
| 2011 | 12 | 7 | 58.3% |
| 2012 | 1 | 1 | 100.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 98 | 0.0% | 9.2% | 85.7% | 3.1% |
| Action 2 | 59 | 0.0% | 10.2% | 76.3% | 10.2% |
| Action 3 | 28 | 0.0% | 10.7% | 82.1% | 3.6% |
| Action 4 | 18 | 0.0% | 5.6% | 88.9% | 0.0% |
| Action 5 | 7 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 6 | 2 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 7 | 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%
0.0%
0.0%
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.