Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388736 | Tank flushing means | Vernon D. Roosa | 1983-06-21 |
| 4341238 | Flushing means | Vernon D. Roosa | 1982-07-27 |
| 4259059 | Extension lighter | Vernon D. Roosa | 1981-03-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388736 | Tank flushing means | Vernon D. Roosa | 1983-06-21 |
| 4341238 | Flushing means | Vernon D. Roosa | 1982-07-27 |
| 4259059 | Extension lighter | Vernon D. Roosa | 1981-03-31 |