Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632935 | Vapor-liquid contact tray and downcomer assembly and method employing same | Neil Yeoman, Chang-Li Hsieh | 1997-05-27 |
| 5480595 | Vapor-liquid contact tray and downcomer assembly and method employing same | Neil Yeoman, Chang-Li Hsieh | 1996-01-02 |