Examiner Walter L. Lindsay, Jr
Grant ratio: 86.6% (94th percentile in Art Unit 2812 among examiners with at least 20 applications). Average office actions per grant: 1.29. Most common rejection type: §103.
Recently active
Last office action in data: July 2026
Examiner record
- Examiner ID
- 76805
- Primary art unit
- 2812
- Work group
- 2810
- Technology center
- 2800
- Applications
- 202
- Granted applications
- 175
- Examiner phone
- (571) 272-1674
- Supervisor
- Patricia Bianco
- Supervisor phone
- (571) 272-4940
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| Group | Examiners | Average grant ratio | Average office actions / grant |
|---|---|---|---|
| Art Unit | 53 | 49.3% | 1.63 |
| Group | 305 | 54.6% | 1.79 |
| 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 | 1 | 0.5% |
| 1 OA | 153 | 75.7% |
| 2 OAs | 43 | 21.3% |
| 3 OAs | 1 | 0.5% |
| 4 OAs | 3 | 1.5% |
| 5+ OAs | 1 | 0.5% |
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 | 36 | 34 | 94.4% |
| 2009 | 54 | 45 | 83.3% |
| 2010 | 58 | 52 | 89.7% |
| 2011 | 46 | 43 | 93.5% |
| 2019 | 1 | 0 | 0.0% |
| 2025 | 3 | 1 | 33.3% |
| 2026 | 4 | 0 | 0.0% |
Rejections by office-action stage
| Office-action stage | Actions observed | §101 | §102 | §103 | §112 |
|---|---|---|---|---|---|
| Action 1 | 201 | 0.5% | 20.4% | 69.2% | 5.5% |
| Action 2 | 48 | 2.1% | 14.6% | 75.0% | 2.1% |
| Action 3 | 5 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 4 | 4 | 0.0% | 0.0% | 100.0% | 0.0% |
| Action 5 | 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%
1.4%
0.0%
2.0%
2019: PEG
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.