Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6715741 | Increased efficiency fractional distillation tray | Nicholas F. Urbanski | 2004-04-06 |
| 6682633 | Apparatus for cocurrent fractional distillation | Dennis H. Bielinski | 2004-01-27 |
| 6568663 | Increased efficiency fractional distillation tray and process | Nicholas F. Urbanski | 2003-05-27 |
| 6479720 | Alkylaromatic process using efficient prefractionation | Dennis E. O'Brien, Dennis H. Bielinski | 2002-11-12 |
| 6390454 | Multiple downcomer fractionation trays with liquid distribution devices on ends of downcomers | Nicholas F. Urbanski | 2002-05-21 |
| 6045762 | Apparatus for catalytic distillation | Karl T. Chuang | 2000-04-04 |