Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4648972 | Liquid distributor for material exchange columns | Werner Geipel | 1987-03-10 |
| 4206181 | Pressure vessel for separating sulfur from an aqueous sulfur suspension | — | 1980-06-03 |