Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422923 | Process for recovering solvents from solvent-containing hydrocarbon phases in hydrocarbon raffination systems | Gerhard Wirtz | 1983-12-27 |
| 4397694 | Spray nozzle assembly for filter devices | — | 1983-08-09 |