Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851275 | Covering used to protect water conditions of nursery pool from damage by acid rain and extraordinary temperatures | — | 1989-07-25 |
| 4744897 | Sweeper type apparatus for clearing the deposition formed on the bottom of a pond | — | 1988-05-17 |
| 4674538 | Device for regulating water flow in a water filter | — | 1987-06-23 |
| 4666601 | Water filter | — | 1987-05-19 |