Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8986430 | Low-energy waste gas cooling using direct contact condenser | Richard B. Nielsen | 2015-03-24 |
| 7691239 | Distillation systems | Walt Stupin | 2010-04-06 |
| 7581719 | Configurations and methods for ribbed downcomer wall | Walt Stupin | 2009-09-01 |
| 4735704 | Liquid removal enhancement | James F. Litchfield | 1988-04-05 |
| 4629484 | Process for separating hydrogen and methane from an ethylene rich stream | — | 1986-12-16 |