Examiner David H. Bollinger
Grant ratio: 92.7% (97th percentile in Art Unit 3653 among examiners with at least 20 applications). Average office actions per grant: 1.15. Most common rejection type: §112.
Appears inactive
Last office action in data: June 2020
Examiner record
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 20 | 64.2% | 1.91 |
| Group | 255 | 56.6% | 1.70 |
| 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 | 0 | 0.0% |
| 1 OA | 655 | 86.6% |
| 2 OAs | 89 | 11.8% |
| 3 OAs | 11 | 1.5% |
| 4 OAs | 1 | 0.1% |
| 5+ OAs | 0 | 0.0% |
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 | 54 | 50 | 92.6% |
| 2009 | 73 | 66 | 90.4% |
| 2010 | 56 | 52 | 92.9% |
| 2011 | 63 | 56 | 88.9% |
| 2012 | 72 | 64 | 88.9% |
| 2013 | 65 | 62 | 95.4% |
| 2014 | 52 | 49 | 94.2% |
| 2015 | 61 | 58 | 95.1% |
| 2016 | 62 | 59 | 95.2% |
| 2017 | 69 | 67 | 97.1% |
| 2018 | 58 | 54 | 93.1% |
| 2019 | 54 | 48 | 88.9% |
| 2020 | 17 | 16 | 94.1% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 756 | 0.4% | 31.9% | 18.8% | 44.2% |
| Action 2 | 101 | 1.0% | 33.7% | 21.8% | 36.6% |
| Action 3 | 12 | 0.0% | 33.3% | 58.3% | 8.3% |
| Action 4 | 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
3.1%
0.0%
0.0%
0.0%
0.0%
1.3%
2014: Alice
0.0%
0.0%
1.2%
0.0%
0.0%
2019: PEG
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.