Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828810 | Removal of low level ethylene oxide contaminants by treatment of contaminated gases with cationic exchange resins at gas-solid interface reaction conditions | David Hammer | 1989-05-09 |
| 4813410 | Gas mask filter for the removal of low level ethylene oxide contaminants from air comprising dried cationic exchange resins | David Hammer | 1989-03-21 |