Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226444 | Surge relief valve | Curtis George Sterud, Laurence R. Stratton | 1993-07-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226444 | Surge relief valve | Curtis George Sterud, Laurence R. Stratton | 1993-07-13 |