Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411785 | Reverse osmosis hollow fiber filter element | Frank Matunas, Nikolaus Zwetkow | 1983-10-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411785 | Reverse osmosis hollow fiber filter element | Frank Matunas, Nikolaus Zwetkow | 1983-10-25 |