Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824443 | Gas separation by composite solvent-swollen membranes | Stephen L. Matson, Dwayne T. Friesen, Donald J. Kelly | 1989-04-25 |
| 4737166 | Acid gas scrubbing by composite solvent-swollen membranes | Stephen L. Matson, Dwayne T. Friesen, Donald J. Kelly | 1988-04-12 |
| D259064 | Soap bar or similar article | — | 1981-04-28 |
| D257223 | Decanter | — | 1980-10-07 |
| D257224 | Decanter | — | 1980-10-07 |