Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5807424 | Regenerative adsorption filter bed for exhauster hoods | Ernest De Ruiter | 1998-09-15 |
| 5616169 | Seal-free and frame-free odor and/or pollutant filter | Ernest De Ruiter | 1997-04-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5807424 | Regenerative adsorption filter bed for exhauster hoods | Ernest De Ruiter | 1998-09-15 |
| 5616169 | Seal-free and frame-free odor and/or pollutant filter | Ernest De Ruiter | 1997-04-01 |