Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4308137 | Water aeration and circulation apparatus | — | 1981-12-29 |
| 4292540 | Wind-powered impeller-mixer | Worthington J. Thompson | 1981-09-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4308137 | Water aeration and circulation apparatus | — | 1981-12-29 |
| 4292540 | Wind-powered impeller-mixer | Worthington J. Thompson | 1981-09-29 |