Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822576 | Removal of hydrogen sulfide from a carbon dioxide containing gas mixture | — | 1989-04-18 |
| 4810475 | Removal of HCN, and HCN and COS, from a substantially chloride-free gaseous stream | Stephen N. Massie | 1989-03-07 |