Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6955759 | Porous dike intake structure for fish diversion | Paul H. Patrick, Henry E. Kowalyk | 2005-10-18 |
| 5425403 | Device for filling bags with a powder-like or granular flowable material, especially sand | — | 1995-06-20 |