Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236474 | Membrane-based removal of condensable vapors | Richard W. Schofield, David D. Newbold, Scott B. McCray, Dwayne T. Friesen | 1993-08-17 |
| 5108464 | Countercurrent dehydration by hollow fibers | Dwayne T. Friesen, David D. Newbold, Scott B. McCray | 1992-04-28 |
| 5041227 | Selective aqueous extraction of organics coupled with trapping by membrane separation | Paul van Eikeren, Daniel J. Brose | 1991-08-20 |
| 5002590 | Countercurrent dehydration by hollow fibers | Dwayne T. Friesen, David D. Newbold | 1991-03-26 |
| 4944882 | Hybrid membrane separation systems | David D. Newbold | 1990-07-31 |
| 4725359 | Potable water from internal combustion engines | — | 1988-02-16 |