Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6113079 | Adjustable circumference fractionation tray and method of installation | Nicholas F. Urbanski, Thomas C. Heldwein, Michael R. Resetarits | 2000-09-05 |
| 5573714 | Splice support construction of multiple downcomer fractionation tray | Daniel R. Monkelbaan, Michael R. Resetarits | 1996-11-12 |
| 4766731 | Method to deliver ultra high purity helium gas to a use point | Arthur W. Francis | 1988-08-30 |
| 4627456 | Valve system for particulate solid flow control | William E. BeVier, Kenneth C. Kather | 1986-12-09 |
| 4401155 | Heat exchanger with extruded flow channels | John Henri Royal, William J. Owens | 1983-08-30 |