Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659434 | Collapsible sparger | Ralph E. Casas, Henry J. Semerak, Willibrord A. Groten, Clifford S. Crossland | 2003-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659434 | Collapsible sparger | Ralph E. Casas, Henry J. Semerak, Willibrord A. Groten, Clifford S. Crossland | 2003-12-09 |