Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D650466 | Bubble promoter for a cross-flow tray | Izak Nieuwoudt, Charles A. Griesel | 2011-12-13 |
| 5413741 | Nested packing for distillation column | Matthew J. Buchholz, Neil Yeoman | 1995-05-09 |