Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4744868 | Distillation column and method | Ferdinand le Grand | 1988-05-17 |
| 4657638 | Distillation column | Ferdinand le Grand | 1987-04-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4744868 | Distillation column and method | Ferdinand le Grand | 1988-05-17 |
| 4657638 | Distillation column | Ferdinand le Grand | 1987-04-14 |