Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681433 | Membrane dehydration of vaporous feeds by countercurrent condensable sweep | Dwayne T. Friesen, David D. Newbold, Scott B. McCray | 1997-10-28 |
| 5611842 | Organic and inorganic vapor permeation by countercurrent condensable sweep | Dwayne T. Friesen, David D. Newbold, Scott B. McCray | 1997-03-18 |