Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7028995 | Vapor-liquid contact trays and method employing same | Ralph Weiland, Charles A. Griesel, Johnny Riter | 2006-04-18 |
| 6962661 | Liquid—liquid extraction apparatus and method | Aldrich Holt Northup, Jr., Neil Sandford, Pamela Jo Tokerud, Gary W. Gage, Veada Colic | 2005-11-08 |
| 6293528 | Fractionation apparatus with low surface area grid above tray deck | Daniel R. Monkelbaan, Robert J. Miller | 2001-09-25 |
| 6131891 | Fractionation column containing stacked fractionation trays | Nicholas F. Urbanski, Mohamed S. M. Shakur | 2000-10-17 |
| 6113079 | Adjustable circumference fractionation tray and method of installation | Nicholas F. Urbanski, Thomas C. Heldwein, Lawrence S. Graczyk | 2000-09-05 |
| 6095504 | Supports for stacked fractionation tray end pieces | Thomas C. Heldwein, Nicholas F. Urbanski, Aaron J. Muck | 2000-08-01 |
| 5975504 | Closely-spaced high capacity fractionation trays | Dale E. Nutter, Daniel R. Monkelbaan, Nicholas F. Urbanski | 1999-11-02 |
| 5707563 | V-module fractionation tray | Daniel R. Monkelbaan, Robert J. Miller | 1998-01-13 |
| 5573714 | Splice support construction of multiple downcomer fractionation tray | Daniel R. Monkelbaan, Lawrence S. Graczyk | 1996-11-12 |
| 5554329 | Fractionation tray formed by triangular downcomer modules | Daniel R. Monkelbaan, Robert J. Miller | 1996-09-10 |
| 5407605 | Fractionation tray with side discharging triangular downcomers | Daniel R. Monkelbaan, Robert J. Miller | 1995-04-18 |
| 5382390 | Multiple-downcomer fractionation tray with vapor directing slots and extended downcomer baffles | Michael James Lockett | 1995-01-17 |
| 5318732 | Capacity-enhanced multiple downcomer fractionation trays | Daniel R. Monkelbaan, Robert J. Miller | 1994-06-07 |
| 5244604 | Packing-enhanced baffled downcomer fractionation tray | Robert J. Miller, Daniel R. Monkelbaan | 1993-09-14 |
| 5223183 | Baffled downcomer fractionation tray | Daniel R. Monkelbaan, Robert J. Miller | 1993-06-29 |
| 5209875 | Multiple-downcomer contacting tray with antipenetration devices | Robert J. Miller, Daniel R. Monkelbaan | 1993-05-11 |
| 5098615 | Multiple-downcomer contacting tray with fluid directing baffles | — | 1992-03-24 |