Examiner Peter M Bythrow
Grant ratio: 83.4% (85th percentile in Art Unit 3648 among examiners with at least 20 applications). Average office actions per grant: 1.18. Most common rejection type: §103.
Recently active
Last office action in data: August 2026
Examiner record
- Examiner ID
- 84561
- Primary art unit
- 3648
- Work group
- 3640
- Technology center
- 3600
- Applications
- 1,021
- Granted applications
- 852
- Examiner phone
- (571) 270-1468
- Supervisor
- Resha Desai
- Supervisor phone
- (571) 270-7792
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 49 | 51.9% | 1.69 |
| Group | 281 | 52.9% | 1.75 |
| 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 | 4 | 0.4% |
| 1 OA | 876 | 85.8% |
| 2 OAs | 113 | 11.1% |
| 3 OAs | 19 | 1.9% |
| 4 OAs | 7 | 0.7% |
| 5+ OAs | 2 | 0.2% |
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 |
|---|---|---|---|
| 2007 | 1 | 1 | 100.0% |
| 2008 | 37 | 27 | 73.0% |
| 2009 | 33 | 26 | 78.8% |
| 2010 | 48 | 42 | 87.5% |
| 2011 | 37 | 31 | 83.8% |
| 2012 | 46 | 39 | 84.8% |
| 2013 | 67 | 54 | 80.6% |
| 2014 | 65 | 57 | 87.7% |
| 2015 | 60 | 48 | 80.0% |
| 2016 | 48 | 39 | 81.3% |
| 2017 | 63 | 58 | 92.1% |
| 2018 | 79 | 72 | 91.1% |
| 2019 | 62 | 55 | 88.7% |
| 2020 | 61 | 60 | 98.4% |
| 2021 | 57 | 54 | 94.7% |
| 2022 | 70 | 65 | 92.9% |
| 2023 | 62 | 55 | 88.7% |
| 2024 | 45 | 41 | 91.1% |
| 2025 | 51 | 28 | 54.9% |
| 2026 | 29 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 1,017 | 6.9% | 20.4% | 61.8% | 7.1% |
| Action 2 | 141 | 7.8% | 9.2% | 73.0% | 7.8% |
| Action 3 | 28 | 0.0% | 14.3% | 85.7% | 0.0% |
| Action 4 | 9 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 5 | 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%
5.0%
0.0%
14.6%
13.0%
11.8%
2014: Alice
17.1%
15.7%
4.9%
6.9%
4.8%
2019: PEG
2.8%
4.3%
0.0%
3.9%
1.6%
2024: AI examples
10.6%
2025: August memo
5.8%
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.